| Patents for B21D 53 - Making other particular articles (18,517) |
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| 07/18/1990 | EP0377682A1 Process for manufacturing a thin edge orifice disc for fuel injectors. |
| 07/17/1990 | US4941340 Method of fabricating wall fasteners |
| 07/17/1990 | US4941339 Tool bits and method of shaping |
| 07/12/1990 | DE3942191A1 Trennvorrichtung fuer biegemaschinen Benders separation assembly for |
| 07/10/1990 | US4940377 Laminated nut having cage with nested fingers and method of manufacture |
| 07/04/1990 | CN1043560A Cast steel column type radiator |
| 07/03/1990 | US4938282 High performance heat transfer tube for heat exchanger |
| 07/03/1990 | US4937937 Method for the manufacture of piston rings |
| 06/27/1990 | EP0374580A2 Assembled shaft |
| 06/27/1990 | EP0374407A2 Assembling method |
| 06/27/1990 | EP0374394A2 Assembled shaft |
| 06/27/1990 | CN1008515B Apparatus for winding-up of cross-ribs |
| 06/26/1990 | US4936129 Method for forming a vehicle wheel |
| 06/26/1990 | CA1270742A1 Tool for the automatic installation of discrete cable ties provided on a continuous ribbon of cable ties |
| 06/20/1990 | CN2058355U Rolling mill for producing steel door and window |
| 06/19/1990 | US4934653 Multi-stream thin edge orifice disks for valves |
| 06/19/1990 | US4934169 Method for moving a tool to exact shaping or working engagement with a strip of material having a repeated basic shape |
| 06/19/1990 | US4934035 Method for producing friction bearing parts, in successive processing steps from ribbon-like composite laminate strip material |
| 06/14/1990 | WO1990006459A1 Piston rings |
| 06/13/1990 | EP0372360A2 Method of making tubular construction parts |
| 06/13/1990 | DE3840938A1 Method for the production of tubular components |
| 06/13/1990 | CN1008383B Method for producing a tubular node |
| 06/12/1990 | US4932116 Machine for producing friction bearing parts, in successive processing steps from ribbon-like composite laminate strip material |
| 06/06/1990 | EP0371053A1 O-ring seals, articles of manufacture incorporating the same and methods of making and using the same |
| 05/31/1990 | DE3939357A1 Container rim flange forming process |
| 05/30/1990 | CN1008148B Scrapless shaping die making multipiece used in holes |
| 05/29/1990 | US4929144 Apparatus for loading radiator fins into trays |
| 05/29/1990 | US4928508 Method of forming prelubricated finstock |
| 05/23/1990 | EP0369578A2 Improvements in or relating to the manufacture of leaf springs |
| 05/23/1990 | EP0126767B1 Cable tie ribbon |
| 05/23/1990 | DE3838245A1 Support ring for a flat heater (radiator) and method for producing a support ring |
| 05/23/1990 | CN1042401A Crankshaft with hollow journal and method for making same |
| 05/16/1990 | CN1042099A Monolithic shaping method and die set for supper-deep thin shell |
| 05/16/1990 | CN1042098A Forming process for automotive door and window frame section |
| 05/16/1990 | CN1007999B Installing process of pipe in steam generator |
| 05/15/1990 | CA1268925A1 Method and apparatus for performing a substantially flat blank of an open clamp |
| 05/10/1990 | DE3937085A1 Beer barrel with buffer rims - made of metal inserts embedded in specified polymer |
| 05/09/1990 | EP0366912A2 Crankshaft with hollow cranks |
| 05/08/1990 | US4923169 Multi-stream thin edge orifice disks for valves |
| 05/08/1990 | US4922738 Process for manufacturing a single piece alloy wheel rim for vehicle tires |
| 05/08/1990 | US4922605 Device for lining a peripheral tube of a steam generator |
| 05/08/1990 | CA1268615A1 Method and an apparatus for the production of ribbed pipes |
| 05/02/1990 | EP0366049A2 Spinning molding process, spinning molding apparatus, spinning molding raw material, spinning molding process of vehicle wheel, and spinning molding apparatus of vehicle wheel |
| 05/02/1990 | CN2056617U Single column transverse rolling mill |
| 04/24/1990 | US4918961 Machine for splining clutch hubs with close tolerance spline bellmouth and oil seal surface roundness |
| 04/24/1990 | CA2001372A1 Spinning molding process for manufacturing a vehicle wheel |
| 04/24/1990 | CA1268020A1 Method for producing a composite center electrode for spark plug |
| 04/18/1990 | CN1007592B Process for preparing sculpture of cold-forging metal |
| 04/17/1990 | US4917440 Method of wheel manufacture for correcting rotational non-uniformity of a pneumatic tire and wheel assembly, apparatus for performing such method, and the resulting wheel |
| 04/17/1990 | US4916984 Shovel blade and method of manufacture |
| 04/17/1990 | US4916929 Method and apparatus for the production of part-circular arc elements |
| 04/11/1990 | CN2055753U Coiling apparatus for hydraulic nelical plate heat exchanger |
| 04/04/1990 | EP0361660A2 Sheet metal article |
| 04/03/1990 | US4913979 Wheel trim ring |
| 04/03/1990 | US4913767 Cut off blade for severing multiple layers of thin polymeric sheet material |
| 04/03/1990 | US4912837 Method of and apparatus for making spacer frames for use in multiple-pane windows |
| 04/03/1990 | CA1267326A1 Method and apparatus for edge preparation of spinning blanks |
| 03/28/1990 | EP0360115A2 Improvements in and relating to piston rings |
| 03/20/1990 | US4909056 Method and an apparatus for cold-roll forming of annular workpieces |
| 03/20/1990 | US4908924 Process for producing a part of torque converter |
| 03/15/1990 | DE3828665A1 Joint fork formed from a sheet-metal blank |
| 03/13/1990 | US4907735 Process for producing a chassis for vehicles |
| 03/13/1990 | US4907626 Wrapped bush having identical joint portions in ends joined at joint |
| 02/28/1990 | EP0356142A2 Structural box beams |
| 02/28/1990 | CN1006969B Method and apparatus for production of ribbed pipes |
| 02/21/1990 | EP0160002B1 A method of affixing tubes to headers in a heat exchanger |
| 02/21/1990 | CN1039769A Container end-closure |
| 02/20/1990 | US4901815 Stamp formed mufflers |
| 02/20/1990 | US4901422 Badges and a method for their manufacture |
| 02/14/1990 | EP0354421A2 Method of making a circular blank and apparatus for carrying out this method |
| 02/13/1990 | US4899569 Method for manufacturing a rotor frame of an electromagnetic clutch |
| 02/07/1990 | EP0353781A1 Styled wheel |
| 02/06/1990 | US4898232 Heat exchanger and process for producing the same |
| 02/06/1990 | US4897909 Method for wheel manufacture by punch forming |
| 01/30/1990 | US4896402 For reducing the size of any gap |
| 01/30/1990 | CA1264967A1 Poly v-pulley |
| 01/24/1990 | EP0351938A2 An aluminum heat exchanger |
| 01/24/1990 | EP0351702A2 Blind fastener |
| 01/24/1990 | CN1039096A Corrugated pipe, method of forming corrugated pipe and apparatus for manufacturing same |
| 01/18/1990 | DE3824011A1 Method for the production of a rim base |
| 01/17/1990 | EP0351044A2 Production of brazeable pipes |
| 01/17/1990 | CN1038778A Automatic apparatus of forming and heat treatment of circular pieces |
| 01/16/1990 | US4894049 Transmission belt, cross element for a transmission belt and method and device for the production thereof |
| 01/16/1990 | US4893391 Method and apparatus for producing round-rolled parts for heat exchangers |
| 01/10/1990 | EP0349778A2 A corrugated pipe, a method of forming the corrugated pipe and an apparatus for manufacturing the same |
| 01/10/1990 | CN1038604A Processing method of tractor frame hole punching accompanying with parts obtaining |
| 01/10/1990 | CN1038603A Processing method of tractor frame |
| 01/09/1990 | US4892424 Thrust bearing |
| 01/09/1990 | US4891962 Roll forming notches in a thin-wall power transmission member |
| 01/09/1990 | US4891885 Method of making a knife having a scalloped cutting edge |
| 01/03/1990 | EP0348837A2 Method for the manufacture of piston rings |
| 12/27/1989 | CN1038228A Spiral bevel-gear cold-straightening technological equipment and straightening method thereof |
| 12/26/1989 | US4889679 Eddy current probe apparatus having an expansible sleeve |
| 12/26/1989 | US4888972 Process and apparatus for the manufacture of radiator cooling fins |
| 12/20/1989 | CN1006147B Method for mfg. bicycle hub |
| 12/19/1989 | US4888270 Photoprinting process and apparatus for exposing paste consistency photopolymers |
| 12/19/1989 | US4887495 Method of manufacturing a double-edged peeling knife |
| 12/12/1989 | US4886408 Bowed external spring retaining ring of the E-shaped type |
| 12/12/1989 | US4885926 Apparatus for the production of spacer frames |
| 12/05/1989 | US4884427 Method of producing helical internal gear |