| Patents for B21K 7 - Making railway appurtenances; Making vehicle parts (272) |
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| 10/11/2007 | WO2007114078A1 Aluminum alloy forging member and process for producing the same |
| 10/11/2007 | CA2637273A1 Aluminum alloy forging member and method for producing the same |
| 08/02/2007 | WO2007085069A1 Sleeve for joining railway tracks and logs i |
| 07/26/2007 | CA2535079A1 Disc brake pad, back plate for pad and method of manufacturing back plate for pad |
| 05/01/2007 | US7210636 Profile transition rail and method for producing said rail |
| 03/07/2007 | CA2557114A1 Snap in abs exciter ring |
| 11/22/2006 | CN1864888A Method for manufacturing open type bicycle hollow crank and crank manufactured thereby |
| 10/31/2006 | CA2354665C Soluble lubricating surface-treated stainless steel sheet with excellent shapability for fuel tank and method for manufacturing fuel tank |
| 06/14/2006 | CN1259215C Crank web of bicycle |
| 03/30/2006 | DE10032467B4 Verfahren zum Herstellen von kammerprofilartigen Werkstücken A method for producing chamber profile-like workpieces |
| 01/04/2006 | CN1714966A Steel rail upsetting device and process |
| 08/04/2005 | US20050167518 Profile transition rail and method for producing said rail |
| 05/04/2005 | EP1528111A1 Al-Si-Mg aluminium alloy product and method of manufacturing the same |
| 05/04/2005 | CN1611622A Aluminum alloy product and method of manufacturing the same |
| 04/28/2005 | US20050087267 Forging and shaping a casting comprised of silicon, magnesium, iron and small amounts of zinc, manganese, nickel, tin and chromium |
| 12/29/2004 | EP1490190A1 Profile transition rail and method for producing said rail |
| 10/16/2003 | WO2003084697A1 Profile transition rail and method for producing said rail |
| 06/11/2003 | CN1111226C Wing rail with special cross section for frog of movable rail and its manufacture |
| 06/11/2003 | CN1111225C Wing rail with special cross section for movable switch fork of railway and its manufacturing method |
| 11/27/2002 | CN2522194Y Railway spring-fastener one-time forming machine |
| 11/20/2002 | CN1094395C Process for modifying section of rail |
| 07/23/2002 | US6422479 Gauge plate and switch rod insulators |
| 05/21/2002 | US6390251 Back plate attached to the disk brake pad, and method of manufacturing the same |
| 03/07/2002 | US20020027167 Gauge plate and switch rod insulators |
| 02/28/2002 | US20020023810 Back plate attached to the disk brake pad, and method of manufacturing the same |
| 02/19/2002 | CA2239651C Gauge plate and switch rod insulators |
| 01/17/2002 | DE10032467A1 Process for manufacturing a workpiece having a chamber profile from metals or metal alloys comprises extruding a blank to form a chamber profile extrusion followed by cold working under cold work-hardening |
| 10/23/2001 | US6305614 Gauge plate and switch rod insulators |
| 02/07/2001 | CN1282820A Wing rail with special cross section for frog of movable rail and its manufacture |
| 01/24/2001 | CN1281077A Wing rail with special cross section for movable switch fork of railway and its manufacturing method |
| 01/09/2001 | US6170756 Gauge plate and switch rod insulators |
| 07/08/1998 | CN2285704Y Hot forging die for flange of half rear axle for automobile |
| 04/09/1997 | CN1034479C Method for making brake shoe of drum brake for automobile |
| 03/27/1997 | CA2177440A1 Hitch receiver with flanged mounting skirt |
| 03/18/1997 | US5611234 Process for modifying the section of a railway rail and rail thus obtained |
| 02/05/1997 | CN2246548Y Brake horse-shoe rolling machine |
| 01/15/1997 | CN1033791C Method for making constant-velocity joint outer wheel rough blank |
| 11/27/1996 | CN1033371C Manufacturing method for drive joint of automobile |
| 11/27/1996 | CN1033370C Method for mfg. blank of (BJ) outer wheel for automotive driving axle's equal speed joint |
| 04/10/1996 | CN2224049Y Steel-track stretching machine |
| 09/20/1995 | EP0672485A1 Method of modifying the section of a railway rail and rail obtained by said method |
| 09/20/1995 | CN1108715A Process for modifying the section of a rail way rail and rail thus obtained |
| 08/16/1995 | CA2137618A1 Process for modifying the section of a railway rail and rail thus obtained |
| 06/29/1994 | CN1088493A Integral cold squeezing production method for brake shoe |
| 04/20/1994 | CN1085473A Manufacturing method for drive joint |
| 04/13/1994 | CN1085142A Method for mfg. blank of outer gear for automative driving axle's ball joint |
| 03/30/1994 | CN1084438A Method for making constant-velocity joint outer wheel rough blank |
| 12/15/1993 | EP0573702A1 Method of making or transition section of a rail and rail made by this method |
| 12/11/1993 | CA2074660A1 Manufacturing process for a rail transition section and rail formed using same |
| 08/11/1993 | CN2139860Y Bending machine for fish plate |
| 03/24/1993 | EP0533528A1 Improved frog and method for its production |
| 08/01/1990 | CN1008976B Rolled forging formating technology for front axle of automobile |
| 07/05/1990 | DE3943038A1 Three=dimensional item production method - bends bars after heating initially in common plane at different points |
| 11/29/1989 | CN1005949B Method for coil mfr. |
| 03/29/1989 | CN1031952A Rolled forging formating technology for front axle of automobile |
| 10/25/1988 | CA1243479A1 Extrusion cladding of base strip for cushioned automotive strap handle |
| 04/26/1988 | US4739643 Method of manufacturing a diamond coil for a rotating electric machine |
| 02/03/1988 | CN87102366A Method for coil mfr. |
| 01/07/1988 | EP0251207A1 Method of manufacturing a diamond coil for a rotating electric machine |
| 01/07/1988 | DE3720734A1 Method for the reconditioning of used steel screws |
| 08/18/1987 | US4687524 Method of forming to a finished size vehicle wheels made of a heat-treatable aluminum alloy |
| 07/30/1986 | CN85203142U Efficiency gas cutting nozzle |
| 07/02/1986 | CA1206734A Apparatus for placing elongate electrical insulators on the flanges of railway rails |
| 06/11/1986 | EP0184131A1 Process for producing and sizing a vehicle wheel |
| 07/03/1984 | CA1170024A1 Axle manufacturing process |
| 02/14/1984 | US4431353 Fastener assembly |
| 12/15/1982 | EP0066794A1 Fastener assembly and method of making the same |
| 09/01/1982 | EP0059038A2 Method of forging heavy articles |
| 01/27/1982 | EP0044783A1 Method of making axles |
| 06/23/1981 | US4274277 Method of making railway car brake-rod jaw |
| 03/24/1981 | CA1097896A1 Apparatus and a method for use in making a railway rail-fastening clip |
| 05/24/1977 | US4025044 Method of making a resilient double C-shaped clip for securing a rail on a support and a clip made by the use of this method |