| Patents for B21K 5 - Making tools or tool parts, e.g. pliers (942) |
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| 11/08/1995 | CN2211865Y Die for producing cone thread steel rod connection sleeve by cold press |
| 09/26/1995 | US5452628 Cold headed center vacuum drill bit |
| 08/03/1995 | WO1995020461A1 Die and punch for forming a joint therebetween |
| 07/12/1995 | EP0662018A1 Hollow bars and method of manufacture |
| 06/29/1995 | WO1995017273A1 Process and device for producing tool bits |
| 06/27/1995 | US5427000 Cutting element, cutting edge and method of making cutting edges |
| 12/27/1994 | US5375449 Method for forming hollow nutdrivers from tubing |
| 11/30/1994 | CN2183838Y Rivet pliers |
| 11/24/1994 | DE4316470A1 Method of producing a rotary cutting tool |
| 09/14/1994 | EP0561957A4 Cold headed center vacuum drill bit |
| 08/31/1994 | EP0612572A1 Method of making a mandrel comprising a drill section |
| 08/20/1994 | CA2089904A1 Method of making a mandrel comprising a drill section for a self-drilling bling rivet |
| 05/03/1994 | US5308286 Device for manufacturing austenitic stainless steel drill screws |
| 04/14/1994 | WO1994007619A1 Hollow bars and method of manufacture |
| 04/14/1994 | CA2145522A1 Hollow bars and method of manufacture |
| 04/13/1994 | EP0591732A1 Method for the production of an open-jawed spanner |
| 04/05/1994 | US5299441 Method of making a mandrel comprising a drill section for a self-drilling blind rivet |
| 03/29/1994 | US5297643 For drilling holes in a work surface |
| 03/03/1994 | WO1994004295A1 Method of manufacturing helical pitch components |
| 02/22/1994 | CA1327133C Tool bits and method of shaping |
| 01/13/1994 | DE4222147A1 Circular saw blade with radical slits along its periphery - has precision input zones with material accumulation in region of centre facing slot end |
| 09/29/1993 | EP0561957A1 Cold headed center vacuum drill bit |
| 09/16/1993 | WO1993017814A1 Process and device for producing cross-head screwing tools or the like, especially in the form of bits |
| 09/16/1993 | DE4207964A1 Cold forming process and equipment esp. for screw driver bits of cross slot form - with hexagonal head formed at one end of round bar blank and cross-slot profile formed at other end with concentric closing pile |
| 09/16/1993 | DE4207963A1 Screwing tool bits mfr. - in which workpiece is subjected to axial spring forces during the forming operation |
| 04/28/1993 | EP0538720A1 Method for producing a pendulously suspended chopping strip for a chopping device, chopping strip and chopping device |
| 02/16/1993 | US5186688 Cold working, passivation, aging |
| 10/28/1992 | EP0199825B1 Method of manufacturing a self-drilling screw |
| 09/01/1992 | US5142948 Hammer and method for manufacture the same |
| 06/20/1992 | WO1992011438A1 Cold headed center vacuum drill bit |
| 01/21/1992 | US5083008 Method for the manufacture of die-forged or die-stamped workpieces |
| 01/08/1992 | CN2092384U Die arrangement for making the reducing die |
| 09/10/1991 | US5046905 Winged drill screw |
| 09/03/1991 | CA1288416C Cutting element with wear resistant crown |
| 07/02/1991 | US5028386 Process for the production of tools |
| 03/13/1991 | EP0416296A1 Procedure of making workpieces embossed or forged in a die |
| 03/12/1991 | US4998853 Self-drilling blind rivet and method for making same |
| 01/09/1991 | EP0407093A1 Winged drill screw |
| 01/08/1991 | US4982596 Die for manufacturing a fastener blank |
| 11/22/1990 | EP0203085B1 Cutting tool and method of manufacture |
| 10/30/1990 | US4966054 Method and apparatus for the manufacture of a punch having a sharp cutting edge |
| 08/01/1990 | EP0380005A1 Self-drilling blind rivet and method of making same |
| 07/26/1990 | DE4001723A1 Self drilling blind rivet - is made from cylinder blank with main body and bore |
| 07/25/1990 | CA2007523A1 Self-drilling blind rivet and method for making same |
| 07/17/1990 | US4941339 Tool bits and method of shaping |
| 06/21/1990 | DE3841840A1 Device for holding cutting tips and method of manufacturing them |
| 12/13/1989 | CN1006044B Techniaue of drawing die insert welding with natural diamond |
| 11/29/1989 | EP0344117A2 Method and apparatus for rolling grooves in tool shanks |
| 07/18/1989 | US4848190 Apparatus for the automatic manufacture of a punch having a sharp cutting edge |
| 06/28/1989 | EP0321590A2 Method and device for manufacturing a cutting die having a sharp cutting edge |
| 06/07/1989 | EP0318607A2 Device for the automatic manufacture of a cutting die having a sharp cutting edge |
| 05/16/1989 | CA1254063A1 Consolidation of a part from separate metallic components |
| 04/12/1989 | EP0310693A1 Method for making cutting blades |
| 02/21/1989 | US4805437 Method and apparatus for producing fasteners having wrenching sockets therein |
| 01/24/1989 | CA1249141A1 Self-drilling screw and method and means for manufacturing same |
| 12/28/1988 | CA1247350A Method for extending the life of a cutting tool |
| 12/27/1988 | US4793220 Method of making a drill-shaped cutting tool and thread rolling dies |
| 12/06/1988 | CA1245843A1 Cutting tool and method of manufacture |
| 10/25/1988 | US4779440 Extrusion tool for producing hard-metal or ceramic drill blank |
| 09/28/1988 | EP0203085A4 Cutting tool and method of manufacture. |
| 08/09/1988 | CA1240117A1 Method for compacting alloy powder |
| 07/06/1988 | CN86108742A Technique of drawing die insert welding with natural diamond |
| 04/07/1988 | DE3636798A1 Method for the production of one-piece sintered cutting tools with a shank |
| 03/02/1988 | EP0257869A2 Cutting element with wear resistant crown |
| 02/04/1988 | DE3623036A1 Apparatus for the automatic production of a stamping tool with a sharp cutting edge |
| 11/10/1987 | US4705124 Sintering mixture of tungsten carbide and cobalt |
| 09/30/1987 | EP0238616A1 Method for manufacturing a tool handle |
| 07/01/1987 | EP0227001A2 Method for manufacturing tools |
| 06/03/1987 | EP0223909A1 Extrusion die for manufacturing a drill blank of hard metal or ceramics |
| 04/09/1987 | WO1987001979A1 Method for manufacturing a tool handle |
| 04/01/1987 | CN85107236A Straightline screw driver-making technology |
| 12/30/1986 | EP0206278A2 Process for manufacturing a crimping tool |
| 12/09/1986 | US4627665 Cold-headed and roll-formed pick type cutter body with carbide insert |
| 12/03/1986 | EP0203085A1 Cutting tool and method of manufacture. |
| 11/05/1986 | EP0199825A1 Method of manufacturing a self-drilling screw |
| 10/15/1986 | CN85205554U Cold pressing forming die for diamond drill bit |
| 09/02/1986 | US4609526 Powder metallurgy, steel tools and dies |
| 08/12/1986 | US4604884 Twisting apparatus of root canal reamer or file material and method for manufacturing root canal reamer or file |
| 07/29/1986 | CA1208460A1 Method of making dies |
| 06/17/1986 | US4594874 Method of forming socket wrenches from tubing |
| 06/05/1986 | WO1986003159A1 Cutting tool and method of manufacture |
| 05/22/1986 | WO1986002867A1 Method of manufacturing drill-shaped cutting tools and rolling die |
| 04/09/1986 | EP0177209A2 Consolidation of a part from separate metallic components |
| 04/01/1986 | US4578984 Machine for deforming the gullets of saw blades to improve resistance to fatigue stress |
| 03/11/1986 | US4575285 Cutting tool and method of manufacture |
| 03/05/1986 | EP0173675A1 Method and device for producing especially metallic work pieces, preferably from steel |
| 02/25/1986 | CA1200994A1 Adjustable wrench and method for its manufacture |
| 02/11/1986 | US4569636 Device for regulating the delivery of rotary compressors |
| 11/27/1985 | EP0162549A1 Method of producing high speed, tool and die steel articles |
| 11/19/1985 | US4554130 Consolidation of a part from separate metallic components |
| 07/09/1985 | CA1190187A1 Wire drawing die and method of making the same |
| 12/04/1984 | US4485655 Tool holder for a mining tool bit and method for making same |
| 09/18/1984 | US4472207 Method for manufacturing blank material suitable for oil drilling non-magnetic stabilizer |
| 08/07/1984 | CA1172069A1 Forming engagement grooves in a tool shank |
| 11/29/1983 | CA1157820A1 Mandrel jaw and method of manufacture |
| 06/28/1983 | US4389870 Forming engagement grooves in a tool shank |
| 05/03/1983 | CA1145780A1 Vehicle load indicating apparatus |
| 02/01/1983 | US4370879 Method for manufacturing a piercing mandrel |
| 12/28/1982 | US4365502 Wire drawing die and method of making the same |
| 11/02/1982 | US4356719 Mandrel jaw and method of manufacture |