| Patents for B23P 15 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass (23,391) |
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| 01/28/1992 | US5083642 Double wrap friction brake band and method of manufacture |
| 01/28/1992 | US5083371 Hollow metal article fabrication |
| 01/28/1992 | US5083362 Method for making a vehicle anti-theft key with resistor |
| 01/22/1992 | EP0467771A1 Brake band fastening device |
| 01/22/1992 | EP0467580A1 Subterranean drill bit and related methods |
| 01/22/1992 | EP0467114A1 CVD diamond coated twist drills |
| 01/22/1992 | EP0466978A2 Process and apparatus for coating pistons |
| 01/22/1992 | EP0466844A1 Cold-formed piston for hydraulically operated brake. |
| 01/21/1992 | CA2043754A1 Process and a device for coating engine pistons |
| 01/19/1992 | CA2047276A1 Control of frequency and weight distribution in high efficient blading |
| 01/19/1992 | CA2042209A1 Cvd diamond coated twist drills |
| 01/16/1992 | DE4022487A1 Aerostatic bearing base - comprises alternating layers of ceramic plates and film with breaks in film to give air feed and form air jets |
| 01/16/1992 | DE4021383A1 Extruded hard metal or ceramic rods |
| 01/15/1992 | EP0465946A1 Hard metal or ceramic bar, method and extrusion-die for its production |
| 01/15/1992 | CN1057804A Process for making high strength al-alloy blank of bicycle crank |
| 01/15/1992 | CN1057803A Making method for stainless steel watch straps |
| 01/14/1992 | US5079974 Sprayed metal dies |
| 01/09/1992 | DE4021381A1 Process for forming mould for thin fibre-reinforced sheet material - uses perforated sheet metal formed on negative patterns |
| 01/07/1992 | US5079102 Formed by thermocompression betweeen a blank and a shank; tape automated bonding |
| 01/07/1992 | US5077961 Cutter blade for mowers of harvesting machines and a method for the production thereof |
| 01/07/1992 | US5077901 Ceramic blades and production methodology therefor |
| 01/07/1992 | US5077892 Method for the manufacture of structurally homogeneous flash-free lead battery terminals |
| 01/07/1992 | CA1293950C Method for producing a spinning nozzle plate |
| 12/31/1991 | US5075968 Hardening steel by heat or nitriding; wear resistance |
| 12/31/1991 | US5075966 Method for fabricating a hollow component for a rocket engine |
| 12/31/1991 | US5075951 Drum closure and method of making |
| 12/27/1991 | EP0462394A1 Connecting element, in particular connecting rod, and method of manufacturing same |
| 12/24/1991 | US5074721 Metal cutting blade and process for manufacture thereof |
| 12/24/1991 | US5074406 Laminated sprocket |
| 12/17/1991 | US5072782 Method of producing pattern for molding castings |
| 12/17/1991 | CA1293160C Cylinder liner reconditioning process |
| 12/12/1991 | DE4018365A1 Producing sheet metal components - by laser cutting tube, shaped by internal pressure, giving half-shells free from internal stress |
| 12/10/1991 | US5071503 Method and apparatus for making three-dimensional objects |
| 12/10/1991 | US5071059 Method for joining single crystal turbine blade halves |
| 12/10/1991 | US5070748 Diamond fluted end mill |
| 12/10/1991 | CA1292982C Heat exchanger and a method and apparatus for the manufacture thereof |
| 12/05/1991 | DE4117938A1 Perforation method for PCB - partially depth drilling followed by laser finishing to required depth |
| 12/04/1991 | EP0459301A2 Conveyor system |
| 12/03/1991 | US5069173 Push rod having irregularly shaped internal bore |
| 12/03/1991 | US5069089 Method of machining a press die |
| 12/03/1991 | US5069080 Transmitting forces from a pinion meas in an automotive-type |
| 12/03/1991 | US5068957 Turning vane setting tool |
| 11/27/1991 | EP0458774A1 Hard metal, or ceramics, blank and method and tool for manufacture of same |
| 11/27/1991 | EP0458434A2 Rotary cutter with Diamond-like cutting edges |
| 11/26/1991 | US5067378 Blade for cutting sheet material and related cutting method |
| 11/21/1991 | EP0449844A4 Alumina-zirconia-silicon carbide-magnesia compositions and cutting tools |
| 11/21/1991 | DE4023029A1 Heat exchanger prodn. from thick copper plates - using solar pre-heating, used in solar accumulator |
| 11/20/1991 | CN1056270A Method for making cylindrical toothed drill of nodular graphite cast iron |
| 11/19/1991 | US5066547 Internal combustion engines; martensite |
| 11/19/1991 | US5065647 Bit for drilling cast iron |
| 11/19/1991 | US5065512 Method of making a bearing for spindles of spinning or twisting machines |
| 11/19/1991 | US5065510 Method for the manufacture of a light metal vehicle wheel |
| 11/19/1991 | US5065508 Two-piece piston and method of manufacturing the same |
| 11/17/1991 | CA2042760A1 Wobble plate type compressor with variable displacement mechanism |
| 11/14/1991 | DE4113722A1 Bearing bushes for piston gudgeon pin - are press fit in piston bosses and are positioned in axial direction by stop |
| 11/13/1991 | EP0441887A4 Method of processing orifices |
| 11/12/1991 | US5063662 Method of forming a hollow blade |
| 11/06/1991 | CN1055891A Throw-away tip and manufacturing method thereof |
| 11/05/1991 | US5062205 Method of manufacture and repair of turbine blades |
| 10/31/1991 | WO1991017367A1 Hydrodynamic bearings having beam mounted bearing pads and sealed bearing assemblies including the same |
| 10/31/1991 | DE4112889A1 Piston with passageways for cooling medium - is made in two parts which are welded together |
| 10/31/1991 | DE4112576A1 Piston for diesel engine - is made in two parts which are friction welded together |
| 10/31/1991 | CA2080810A1 Hydrodynamic bearings having beam mounted bearing pads and sealed bearing assemblies including the same |
| 10/30/1991 | CN1055691A Safety razor blade |
| 10/30/1991 | CN1014553B Time wheel and making method thereof |
| 10/29/1991 | US5061293 Cutting intermediate structure into two pieces for more efficient use thereof |
| 10/29/1991 | US5060374 Method for fabricating a valve |
| 10/23/1991 | EP0453428A1 Method of making cemented carbide body for tools and wear parts |
| 10/22/1991 | US5058266 Method of making internally finned hollow heat exchanger |
| 10/22/1991 | CA1290930C Rotary cutting cylinder and method of making same |
| 10/17/1991 | WO1991015330A1 Moulding means and method |
| 10/16/1991 | CN1014347B Manufacturing method of solid lubricant inlaid metal sliding parts |
| 10/15/1991 | US5057401 Using photosensitivity photoresists |
| 10/15/1991 | US5056382 Matrix diamond drag bit with PCD cylindrical cutters |
| 10/15/1991 | US5056219 Method of manufacturing hollow engine valve |
| 10/09/1991 | EP0449844A1 Alumina-zirconia-silicon carbide-magnesia compositions and cutting tools. |
| 10/08/1991 | US5054938 Hydrodynamic bearings having beam mounted bearing pads and sealed bearing assemblies including the same |
| 10/08/1991 | US5054195 Process for the production of a valve |
| 10/06/1991 | WO1991015340A1 Safety razor blade |
| 10/06/1991 | CA2079330A1 Safety razor blade |
| 10/02/1991 | EP0449462A2 Roll stamper for moulding substrate sheet for information recording mediums, procedure for preparation of the same, and procedure for producing substrate sheets for information recording mediums |
| 10/02/1991 | EP0448792A2 Method for the manufacture of lead battery terminals and lead terminals obtained thereby |
| 10/01/1991 | US5053102 Brake lining bonding apparatus |
| 10/01/1991 | US5052100 Method of making sprue bushing assembly with inner thermal sleeve |
| 10/01/1991 | CA1289890C Parts for and methods of repairing turbine blades |
| 09/26/1991 | DE4006777A1 Heat exchanger plate mfr. - by formation of final internal and external contours before corrugation |
| 09/25/1991 | EP0448339A1 Method of forming a hollow blade |
| 09/24/1991 | US5051126 Hard dispersed phase of metal and binder phase of iron or group VIII metal |
| 09/24/1991 | CA1289554C Process to manufacture a pressure panel heated by a fluid medium |
| 09/22/1991 | CA2031596A1 Batteries |
| 09/18/1991 | EP0446960A1 Method of manufacture of a pallet for receiving a workpiece |
| 09/18/1991 | EP0446959A2 Method of manufacture of a substantially cylindrical shank with a centring arm transient in one piece into the shank |
| 09/17/1991 | US5048743 Rotor blade bonding device |
| 09/17/1991 | US5048375 Method for constructing a rotating cutting tool |
| 09/12/1991 | DE4008102A1 Cutting-tool prodn. method - involves cutting insert with hard solder in vacuum chamber above hardening temp. |
| 09/11/1991 | EP0445820A1 Process for making a needle with a three-dimensionally tapered point |
| 09/11/1991 | EP0445470A2 Elongated,lightweight rack and method for making same |
| 09/10/1991 | US5046244 Method for manufacturing stators, in particular extended stators, for pumps or motors with eccentric shafts |
| 09/05/1991 | WO1991012957A1 A device for manufacturing three-dimensional objects |
| 09/05/1991 | DE4006611A1 Paper cutting-perforation wheel - has projecting cutter blade clamped between holder discs |