| Patents for B23P 13 - Making metal objects by operations essentially involving machining but not covered by a single other subclass (3,347) |
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| 02/28/1995 | US5392516 Method for forming a spool valve sleeve |
| 02/22/1995 | CN1027682C Method and apparatus for prodn. of portable conic container |
| 02/15/1995 | EP0638147A1 Process for producing a component with at least one divided bearing surface for rolling elements. |
| 02/14/1995 | US5388322 Method of making a shatterproof air bag inflator pressure vessel |
| 02/08/1995 | CN2189029Y Steel bar cutting roller machine |
| 02/01/1995 | CN2188448Y Processing machine for bicycle front angle middle tube |
| 02/01/1995 | CN1098038A Method for processing internal and external walls of sand-preventing petroleum pipe |
| 01/25/1995 | CN1097667A Technology for producing guage bent tube |
| 01/25/1995 | CN1027496C Method for working steel tube type radial thrust bearing blank |
| 12/13/1994 | US5373449 Method of producing a multi-apertured workpiece |
| 12/07/1994 | CN1026870C Method for making ring metal parts |
| 12/07/1994 | CN1026868C Precision forming method of thin-wall cylindrical elements |
| 11/30/1994 | EP0626233A1 Method of manufacturing an internally coated domestic water storage |
| 11/24/1994 | WO1994026469A1 Group ivb boride based cutting tools |
| 11/24/1994 | CA2146665A1 Group ivb boride based cutting tools |
| 11/16/1994 | CN1095004A Method for producing sealing ring |
| 11/16/1994 | CN1026559C Method for manufacturing of assembled crank shaft durch enlarging of in geteilten divided gudgeon through pivoted case |
| 11/15/1994 | US5365033 Method of producing a multi-apertured component |
| 11/08/1994 | US5361493 Method of manufacturing wheels for motor vehicles |
| 11/02/1994 | CN1094487A Technology for producing high-strength bimetal nut |
| 10/13/1994 | WO1994022634A1 Method for fabricating an expulsion tubular for moulds |
| 10/13/1994 | DE4311909A1 Method for the production of hollow shafts with a profile |
| 10/13/1994 | DE4311875A1 Method for the production of hollow shafts with a profile |
| 10/11/1994 | US5354581 Mechanical forming a plurality of grooves and depressions |
| 09/15/1994 | WO1994020765A1 Process for producing a component with at least one divided bearing surface for rolling elements |
| 09/14/1994 | CN2176867Y Automatic tube-like-part shaping device from metal plate |
| 09/14/1994 | CN1092007A Method for making white cast iron ball |
| 08/31/1994 | CN1091345A Forming method of band saw web for sawing wood |
| 08/24/1994 | CN1025723C Method for making transmission cover with lug |
| 08/23/1994 | US5339523 Method of machining sleeve bearing |
| 08/04/1994 | DE4302308A1 Method of forming control grooves in rotary slide valve element |
| 07/27/1994 | EP0607757A1 Method of fashioning wheels for motor vehicles and the wheels obtained by such a method |
| 07/27/1994 | CN1090026A Method for manufacturing high-pressure gas cylinder |
| 07/16/1994 | CA2093681A1 Method of fashioning wheels for motor vehicles, and the wheels obtained by such a method |
| 07/13/1994 | CN1089202A Producing technology for crystalline gear (casting gear) |
| 06/22/1994 | CN1088143A Method for manufacture of inward concave iron specials |
| 06/15/1994 | CN1087850A Conic cylinder hydraulic flanging shaping technique and apparatus |
| 06/15/1994 | CN1087849A Mfg. Technique and apparatus for vessel sealing cap |
| 06/15/1994 | CN1087848A Mfg. method for high strength nut |
| 06/15/1994 | CN1025013C Method for working surface on body and body manufactured by this method |
| 06/14/1994 | US5319849 Method of manufacturing a brake cylinder |
| 06/08/1994 | CN2167809Y Hydraulic bar-stock-cutting machine |
| 06/01/1994 | DE4317511C1 Method for prodn. of inner-coated tap water store - uses storage tank which is provided with an outer cover in pot or cylindrical form as external heater |
| 06/01/1994 | CN1087409A Elastic expansion bolt and making method thereof |
| 05/11/1994 | DE4237482A1 Forming control grooves in hollow, cylindrical control bush - starts with shaped, hollow blank with inner cross-sectional change and restriction |
| 05/10/1994 | US5309639 Method of making a machine component with lubricated wear surface |
| 05/05/1994 | DE4336706A1 Method of manufacturing piston bush with piston slide bore - involves bore for control sleeve and window section in wall of control sleeve bore |
| 04/27/1994 | CN1085839A Method for mfg. tube made up of Ni-Ti-Nb memory alloy |
| 04/21/1994 | DE4234884A1 Mfg. two-part surgical instrument, with blank cut into two parts - form required contours in blank during dividing by cutter |
| 04/07/1994 | DE4241156C1 Production method for torsional vibration damper of IC engine crankshaft - involves producing single metal component which after introduction of rubber spring element has end face machined off to leave damper in completed form |
| 04/06/1994 | CN2160497Y Table folding shearing machine |
| 04/06/1994 | CN1084794A Micro shape composite filament of noble metal and alloy making method and device |
| 04/06/1994 | CN1024120C Producing method for hand clothes cutting scissors |
| 03/08/1994 | CA1327461C Process for producing individual cams from cast material |
| 03/02/1994 | CN1082968A Manufacture of lighter nozzle and base |
| 02/22/1994 | CA2054103C Method for providing contaminant free gas |
| 02/16/1994 | CN1023774C Process for improving the plasticity of cold deformation of low-carbon thread reinforcing steel |
| 01/19/1994 | EP0579525A1 Manufacturing method for a bicycle rim and rim manufactured by this method |
| 01/12/1994 | CN1080581A Automobile hub axle tube making technology |
| 01/05/1994 | CN1080229A Method for making thick-walled long-tube heavy machine member |
| 01/05/1994 | CN1080228A Coiling and hot-forming process and apparatus for wedge rings |
| 12/29/1993 | CN1079930A Produciton technique for directly-driving automobile gear shift bar |
| 12/08/1993 | CN1079181A Method for making yoke of hose connector |
| 12/02/1993 | DE4315618A1 Method of mfg. precision components of refined tool steel - starts with cylindrical bolt blank of hardened steel and specified tensile strength followed by machining |
| 11/24/1993 | EP0571297A1 Retaining split sleeve and process for manufacturing it |
| 11/18/1993 | DE4216158A1 Manufacturing process of wheel key for vehicle wheel - involves extruding cylindrical hollow profile and then cutting off blank and shaping it to required shape |
| 11/11/1993 | DE4215133A1 Drive unit for load handling winch - has locking ring stamped-out of bar stock blank with both front faces turned in region of brake rings |
| 11/03/1993 | CN2145089Y Shearing machine |
| 11/02/1993 | CA1323775C Process for producing assembled crankshafts by expanding sleeves arranged in divided journals |
| 10/19/1993 | US5253409 Method of manufacturing a plastic article having micro-openings defined therein |
| 10/06/1993 | EP0563545A1 Process for manufacturing camshaft with remelt-quenched cams |
| 09/14/1993 | US5243759 Method of casting to control the cooling air flow rate of the airfoil trailing edge |
| 08/04/1993 | EP0553474A1 Tensioning slide and method for fabricating tensioning slides |
| 08/04/1993 | CN1074798A Blade for stubble ploughing machine |
| 07/27/1993 | US5230382 Process of producing individual eccentric cams from cast metal |
| 06/23/1993 | EP0547914A1 Method of producing a multi-apertured component |
| 06/23/1993 | CN1073387A Electrochemical and mechanical method and apparatus for making oil-producing sieve tube |
| 06/23/1993 | CN1021301C Method and apparatus for fracturing connecting rods |
| 06/20/1993 | CA2085826A1 Method of producing a multi-apertured component |
| 06/02/1993 | CN1072627A Manufacturing method, mould and product thereof for steel elbow with straight section |
| 05/13/1993 | DE4136874A1 Mfr. of bushings or linear guides with pockets for rolling elements - by precision moulding rings or rectangular elements and inserting balls or rollers in hemispherical or cylindrical recesses before joining together |
| 05/05/1993 | EP0539671A1 Process for the production of a plastic preform with pores |
| 04/28/1993 | CN2130639Y Cutting and flatting mill for metallic materials |
| 04/20/1993 | USRE34224 Method of making a carburetor |
| 04/13/1993 | CA1316019C Multiple sleeve-nut anchor plate |
| 03/10/1993 | CN1069685A A method of precisely forming thin-wall tube-shaped element |
| 03/03/1993 | CN1069440A Blank technology of steel pipe type radial thrust bearing |
| 03/03/1993 | CN1069439A Processing method for bar-shape metal sheet of being either flat sable state or curl-shape stable state |
| 02/24/1993 | CN1069217A Production method of tailor's scissors |
| 01/27/1993 | CN1068286A Method for making large saw bits |
| 01/07/1993 | EP0521235A2 Method and apparatus for machining scroll wraps |
| 12/25/1992 | CA2059694A1 Method and apparatus for machining scroll wraps |
| 12/24/1992 | DE4120709A1 Hydraulic cyl;inder prodn. - using extruded or cold drawn aluminium@ tube and butt-welded hollow socket(s) with solid end finally drilled through |
| 12/16/1992 | CN1067000A Technology for moulding balls of ball valve without sand core |
| 12/15/1992 | US5171621 Product having alveoli, semi-finished product therefor and method of making the products |
| 12/09/1992 | CN1066809A Producing method for driving sleeve with lug |
| 12/08/1992 | US5169046 Method and apparatus for fracturing connecting rods |
| 10/13/1992 | US5153977 Method for making double-walled insulating metal container |
| 09/30/1992 | CN1018435B Production method and its installation of high neck flange |
| 09/10/1992 | DE4107688A1 Method of producing bearing bushes with deep grooves - involves transfer of bush through bending, sizing grooving and deburring stations in integrated work cycle |