| Patents for B21D 53 - Making other particular articles (18,517) |
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| 03/16/1999 | US5882123 Roll-formed bearing race and process for producing the same |
| 03/16/1999 | US5881456 Header tubes for heat exchangers and the methods used for their manufacture |
| 03/11/1999 | DE19838438A1 Vehicle steering wheel fitted to steering shaft |
| 03/11/1999 | DE19807017A1 Method and apparatus for producing a rotationally symmetric workpiece with internal teeth |
| 03/11/1999 | DE19754005C1 Connector for jewellery |
| 03/11/1999 | DE19737024A1 Drawing method and tool for hollow ring for lighting system |
| 03/10/1999 | EP0900605A2 Method of forming a cylindrical heat exchanger header tank |
| 03/10/1999 | CN1210241A Fin-type condenser and method for manufacturing the same |
| 03/09/1999 | US5878494 Method for manufacturing a machine bearing |
| 03/09/1999 | US5878493 Method of forming toothed wheels |
| 03/04/1999 | WO1999010694A2 Method for producing a heat exchanger |
| 03/04/1999 | WO1999010219A1 A method of securing components together and a structural member made by said method |
| 03/04/1999 | DE19805955A1 Condenser for refrigeration or air-conditioning plant |
| 03/04/1999 | DE19740322C1 Method of manufacture of internal combustion engine camshaft |
| 03/04/1999 | DE19737158A1 Hocheffizienter Wärmetauscher zur Anwendung in Sensor- oder zeitgesteuerter Stoßbelüftung mit Wärmerückgewinnung Highly efficient heat exchanger for use in sensor or time-controlled shock ventilation with heat recovery |
| 03/03/1999 | EP0899054A1 Automated assembly machine for picture hangers |
| 03/02/1999 | US5878323 Process for producing split type mechanical part |
| 03/02/1999 | US5875668 Roll forming method for forming flat tube and roll forming apparatus using the same |
| 02/25/1999 | DE19820124A1 Steering rod tube production |
| 02/24/1999 | EP0897767A1 Vehicle steering rack and method of manufacturing the rack |
| 02/18/1999 | WO1999008060A1 Tube for heat exchangers and method of manufacturing same |
| 02/18/1999 | DE19733433A1 Vorrichtung zum Bruchtrennen von Stange und Deckel eines Pleuels Apparatus for fracture separation of rod and cap of a connecting rod |
| 02/17/1999 | CN1207968A Two-step rings billet punching formation and composite die used therein |
| 02/16/1999 | US5870919 Folding system for a cutting blade |
| 02/16/1999 | US5870819 Apparatus for assembling a heat exchanger core |
| 02/11/1999 | WO1999006170A1 Method for fracture-separating an annular piece |
| 02/11/1999 | WO1999006169A1 Device for separating the rod and cap of a connecting rod by breaking |
| 02/11/1999 | WO1999006164A1 Method for ironing spline teeth in pressed stepped sheetmetal and sheetmetal clutch drum formed by same |
| 02/11/1999 | CA2298691A1 Device for separating the rod and cap of a connecting rod by breaking |
| 02/10/1999 | EP0895883A1 Method of making a vehicle stabiliser bar |
| 02/10/1999 | EP0865938A4 Method of producing light alloy wheels |
| 02/10/1999 | CN1207806A 热交换器 Heat exchanger |
| 02/09/1999 | US5868198 Header pipes for heat exchanger |
| 02/09/1999 | US5868042 Multiple cams |
| 02/09/1999 | US5868025 In a turbine of a torque converter |
| 02/09/1999 | US5867899 Method of manufacturing a header pipe for a heat exchanger |
| 02/03/1999 | EP0894553A2 Apparatus for bending a hollow profile with a clamp |
| 02/03/1999 | EP0894552A2 Improvements in or relating to heat exchanger manufacture |
| 02/03/1999 | EP0894547A2 Al alloy composite tube for refrigerant passages and method for producing the same |
| 01/28/1999 | DE19831047A1 Hollow frame member for vehicle body construction |
| 01/27/1999 | CN1206361A 剃刀刀片制造 Razor blade manufacturing |
| 01/26/1999 | US5862700 Method and apparatus for forming a profile in a wall of a hollow cylindrical work piece |
| 01/26/1999 | US5862696 Method and apparatus for the manufacture of a poly-V-pulley |
| 01/26/1999 | US5862592 Cage for roller bearings and method for manufacturing the same |
| 01/21/1999 | WO1999002283A1 Tube for heat exchanger and method of manufacturing same |
| 01/20/1999 | EP0892190A2 Drum brake assembly |
| 01/20/1999 | CN2304485Y Improved structure of necking apparatus |
| 01/20/1999 | CN1205261A Method and appts. for mfg. uper and lower level arm assembly of front bridge suspension frame of coach |
| 01/19/1999 | US5860313 Method of manufacturing press-formed product |
| 01/13/1999 | EP0890800A2 Radiator with one or more plates having at least two different sections |
| 01/13/1999 | EP0889790A1 Lightweight sheet-steel wheel for vehicles |
| 01/13/1999 | CN1204558A Gear rolling cold-forging forming machine and feeding equipment thereof |
| 01/12/1999 | CA2086730F Heat exchange element |
| 01/07/1999 | WO1999000201A1 Valve and method for producing a valve seat for a valve |
| 01/07/1999 | WO1999000199A1 Powershift clutch and method of forming same |
| 01/07/1999 | DE19829050A1 Manufacturing ring-shaped metallic parts with flat sections from round rod |
| 01/07/1999 | DE19828597A1 Method and tool for making a flange on a wire mesh component |
| 01/07/1999 | DE19727599A1 Method for producing metal wheels |
| 01/07/1999 | DE19726991A1 Ventil und Verfahren zur Herstellung eines Ventilsitzes für ein Ventil Valve and method of producing a valve seat for a valve |
| 01/06/1999 | CN1204273A Method of forming boss integrally with sheet metal |
| 01/05/1999 | US5855394 Motor vehicle frame assembly and method of forming the same |
| 12/30/1998 | EP0833691B1 Device and method for producing a honeycomb element from entwined sheet-metal layers |
| 12/29/1998 | US5852873 Method of manufacture of a rotationally symmetrical part |
| 12/29/1998 | US5852859 Method and apparatus for making piston rings |
| 12/24/1998 | DE19726406A1 Moulding thin-walled elements out of metal or similar material with plastic properties |
| 12/23/1998 | WO1998057764A1 Method for mutually connecting two tubular parts |
| 12/23/1998 | EP0886045A1 Exhaust system with seamed roll joints |
| 12/23/1998 | EP0603366B1 Assembly line for producing steel coffers for ceiling and/wall constructions from sheet metal plates |
| 12/23/1998 | CN1202938A Method of producing a spinning or twisting ring and a spinning or twisting ring produced by the method |
| 12/23/1998 | CN1202858A Method of producing light alloy wheels |
| 12/22/1998 | US5850695 One-piece hollow camshafts and process for producing same |
| 12/17/1998 | WO1998057071A1 Torque transmitting member in automotive transmission, method for forming spline teeth, and apparatus for forming the same |
| 12/16/1998 | EP0884122A1 Method for manufacturing a pipe with a partition |
| 12/16/1998 | EP0884121A2 Method for manufacturing a header pipe |
| 12/16/1998 | EP0884120A2 Method and apparatus for manufacturing a header pipe |
| 12/16/1998 | EP0883501A1 Light metal rim ring and method for constructing it |
| 12/16/1998 | CN1202235A Serpentine heat exchanger |
| 12/15/1998 | US5848866 Truss plates, punch for forming same, and associated method for using same |
| 12/10/1998 | WO1998055248A1 Roll-formed bearing race and process for producing the same |
| 12/10/1998 | DE19830817A1 Internal toothing flow-turning process for workpieces |
| 12/10/1998 | DE19723939A1 Exhaust gas catalyst assembly |
| 12/10/1998 | DE19723114A1 Stainless steel or plastics barrel with improved impact protection |
| 12/09/1998 | EP0882532A2 Flow-turning device and method for the manufacture of a workpiece having a toothed face |
| 12/09/1998 | CN1200965A Kitchen-knife processing and forming technology |
| 12/08/1998 | US5845400 Method of manufacturing a one end flange-less wheel rim |
| 12/08/1998 | US5845394 Method of manufacturing a yoke for an elastic universal joint |
| 12/03/1998 | WO1998053937A1 Method and device for producing a one-piece vehicle wheel |
| 12/03/1998 | WO1998053932A1 Method for producing heat exchangers and heat exchanger produced according to same |
| 12/03/1998 | WO1998038017A3 Razor blade and cartridge including same and method of making same |
| 12/03/1998 | DE19823460A1 Multiple disc clutch for automotive vehicles |
| 12/03/1998 | DE19723073A1 Sheetmetal disc conversion for e.g. pulley service |
| 12/03/1998 | DE19721931A1 Verfahren zur Herstellung von Wärmetauschern sowie danach hergestellter Wärmetauscher A process for the manufacture of heat exchangers and then produced heat exchanger |
| 12/03/1998 | CA2290448A1 Method and device for producing a one-piece vehicle wheel |
| 12/01/1998 | US5842515 Heat exchanger and method of manufacturing header pipe for the same |
| 11/26/1998 | DE19721358A1 Joining various shaped components |
| 11/25/1998 | EP0879661A1 Process of manufacture of a conical, annular workpiece and workpiece obtained by said process |
| 11/25/1998 | EP0879657A2 Method and apparatus for producing a hollow body |
| 11/25/1998 | EP0879105A1 Method for making a wheel for a land motor vehicle |
| 11/24/1998 | US5839777 Support of a body structure of a vehicle and process for manufacturing same |
| 11/19/1998 | WO1998051939A1 Thin-walled ring-shaped member and method of manufacturing same |