| Patents for B21H 7 - Making articles not provided for in groups , e.g. agricultural tools, dinner forks, knives, spoons (1,122) |
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| 07/17/1990 | US4941339 Tool bits and method of shaping |
| 06/28/1990 | WO1990006856A1 Process and means for automatically matching at least two substantially cylindrical surfaces, engaging each other, particularly for mechanical emboss engraving, and engraved plates obtained with such process and means |
| 05/22/1990 | US4927070 Method for making multi-colored composite laminates |
| 04/11/1990 | EP0362502A2 Method for sizing the cross-section of a work piece by reduction during its rotation |
| 04/05/1990 | WO1990003233A1 Reduction of oil-canning defects in roll-forming |
| 04/03/1990 | CA1267326A1 Method and apparatus for edge preparation of spinning blanks |
| 03/08/1990 | WO1990002315A1 Metrological scale |
| 02/27/1990 | US4903400 Method of producing an embossed structure |
| 01/10/1990 | CN1038601A Rolling method and rolling mill |
| 12/13/1989 | CN1037851A Precise roll-forging technology for variable-section steel sheet spring of car |
| 12/12/1989 | EP0324779A4 Roller screening apparatus. |
| 12/07/1989 | DE3817851A1 Apparatus for notching pins or needles or rivets |
| 12/05/1989 | US4884427 Method of producing helical internal gear |
| 11/29/1989 | EP0344117A2 Method and apparatus for rolling grooves in tool shanks |
| 11/28/1989 | US4883404 Gas turbine vanes and methods for making same |
| 11/23/1989 | EP0342408A1 Rolling method and rolling machine |
| 11/21/1989 | US4881430 Method of making heterogeneous blade-like metallic cutter member |
| 10/31/1989 | US4876837 Corner bead structure |
| 10/17/1989 | US4873856 Knurling machine and the like |
| 09/19/1989 | US4866966 Method and apparatus for producing bypass grooves |
| 09/05/1989 | US4863812 Battery receptacle |
| 07/26/1989 | EP0324779A1 Roller screening apparatus |
| 07/19/1989 | EP0324612A2 Taper rolling of metal |
| 05/17/1989 | CN1032913A Apparatus for longitudinal rolling of varying-section blanks |
| 04/20/1989 | DE3728393C1 Method for the mechanical production of primarily linear engravings of high precision and surface quality in large-area metal plates and thin-walled plastic sheets and apparatus for carrying out the method |
| 03/29/1989 | CN1031952A Rolled forging formating technology for front axle of automobile |
| 02/09/1989 | WO1989000899A1 Method and device for making workpieces with a variable longitudinal profile |
| 01/17/1989 | CA1248784A1 Knurling tool |
| 01/12/1989 | DE3822042A1 Method and device for stiffening saw blades |
| 01/04/1989 | EP0297552A2 Composite structures and methods of manufacturing the same |
| 12/27/1988 | US4793220 Method of making a drill-shaped cutting tool and thread rolling dies |
| 12/06/1988 | CA1245837A1 Production procedure of brake shoes |
| 11/29/1988 | US4787837 Wear-resistant ceramic, cermet or metallic embossing surfaces, methods for producing same, methods of embossing articles by same and novel embossed articles |
| 11/22/1988 | CA1245083A1 Nail-type fastener, and process for manufacturing such fasteners |
| 06/15/1988 | EP0271481A2 Method and blank for producing tools |
| 04/28/1988 | DE3722675A1 Device for the production of holding surfaces for sheet grippers |
| 04/28/1988 | DE3634708A1 Machine component exposed to sliding friction, such as, in particular, a piston ring |
| 04/07/1988 | WO1988002287A1 Roller screening apparatus |
| 03/22/1988 | US4732082 Apparatus and method for mounting embossing rollers in a press line |
| 02/25/1988 | DE3715393A1 Method of manufacturing a hollow body having a straight or oblique internal toothing |
| 02/24/1988 | EP0256803A2 Embossing tools, their formation and use |
| 02/02/1988 | US4722211 Method of forming hollow parts |
| 12/03/1987 | WO1987007435A1 Battery receptacle |
| 09/01/1987 | US4689980 Method for snap ring forming and grooving |
| 08/25/1987 | US4688414 Production procedure of brake shoes |
| 07/15/1987 | EP0228570A2 Method and device for making an embossing structure on press bands |
| 06/11/1987 | DE3542967A1 Method and apparatus for smoothing workpieces in hammer forging in forging presses |
| 04/22/1987 | EP0219019A2 Apparatus for plastic cross-rolling porous sintered metallic work pieces presenting a rotational symmetry |
| 03/24/1987 | US4651551 Means for manufacturing components of rotary valves |
| 03/18/1987 | CN85106448A Forming machine with multiple operating positions |
| 03/11/1987 | EP0213880A2 Snap ring forming and grooving |
| 02/24/1987 | US4644772 Snap ring forming and grooving |
| 01/20/1987 | US4637768 Nail-type fastener, and process for manufacturing such fasteners |
| 01/13/1987 | US4635331 Method for the production of a guide rail |
| 11/05/1986 | EP0199825A1 Method of manufacturing a self-drilling screw |
| 08/19/1986 | US4606206 Method and apparatus for edge preparation of spinning blanks |
| 08/13/1986 | EP0190958A2 Method and apparatus for edge preparation of spinning blanks |
| 07/30/1986 | EP0188521A1 Knurling tool |
| 07/01/1986 | US4597277 Process and apparatus for producing reinforced metal strips |
| 05/22/1986 | WO1986002867A1 Method of manufacturing drill-shaped cutting tools and rolling die |
| 04/29/1986 | US4584861 Knurling tool |
| 04/09/1986 | EP0177334A2 Improved means for manufacturing components of rotary valves |
| 04/09/1986 | EP0177333A2 Manufacture of valve cores |
| 03/26/1986 | EP0175131A1 Device for making small plates |
| 01/30/1986 | WO1986000554A1 Knurling tool |
| 01/15/1986 | EP0168257A1 Process of manufacturing brake shoes |
| 12/18/1985 | EP0165195A2 Manufacture of metal vanes for turbomachinery |
| 10/30/1985 | EP0159818A1 Method and apparatus for the production of metal products |
| 07/30/1985 | US4531270 Method for the manufacture of metal vanes for turbomachinery |
| 05/15/1985 | EP0141762A2 Method and device for the manufacture of reinforced metallic strips |
| 03/26/1985 | US4506399 Method of making strut nuts |
| 12/27/1984 | CA1179901A Forming apparatus |
| 11/20/1984 | US4483168 Forming apparatus |
| 09/19/1984 | EP0119112A1 Shaft with sintered cames stuck to it |
| 05/23/1984 | EP0109389A1 Steel blade of a thrust weapon, in particular for fencing |
| 01/17/1984 | US4426193 Impact composite blade |
| 06/07/1983 | CA1147635A1 Forming leveler |
| 04/06/1983 | EP0076244A1 Nail-type fastener, and process for manufacturing such fasteners |
| 03/31/1983 | WO1983001097A1 Nail-type fastener, and process for manufacturing such fasteners |
| 01/04/1983 | US4366693 Method of producing shaped rolled sections |
| 08/24/1982 | US4345358 Method of and apparatus for manufacturing plowshares |
| 07/20/1982 | CA1127820A1 Process for applying a thick inset of antifriction resins on a surface |
| 04/20/1982 | CA1122305A1 Method of and apparatus for producing plate material having uniform width and lengthwise thickness variation |
| 02/23/1982 | US4316377 Roll forging machine |
| 01/26/1982 | US4312207 Rolling mill for forming cross ribbed pipes |
| 09/22/1981 | US4290288 Device for narrowing the breadth of a sheet spring material in an apparatus for manufacturing a taper leaf spring |
| 09/08/1981 | US4287744 Taper rolling machine |
| 09/01/1981 | US4286451 Forming leveller |
| 08/25/1981 | US4285227 Edge roll assembly for manufacturing a taper leaf spring |
| 07/28/1981 | US4280351 Taper rolling of metal |
| 06/24/1981 | EP0030552A1 Forming leveller |
| 05/12/1981 | US4266418 Method for manufacturing a taper spring |
| 03/24/1981 | US4257250 Knurling tool |
| 03/24/1981 | CA1097956A1 Method of producing shaped rolled sections and a production line for carrying same into effect |
| 02/03/1981 | US4248915 Grooves and ridges to extend anchoring surface |
| 02/03/1981 | US4248072 Method of and apparatus for producing plate material having uniform width and lengthwise thickness variation |
| 01/28/1981 | EP0023143A1 Method and apparatus for forming clips on ferrous horseshoes |
| 01/20/1981 | US4245695 Heat transfer tube for condensation and method for manufacturing same |
| 01/07/1981 | EP0021791A1 A method of roll forming stock and forming leveller |
| 12/24/1980 | WO1980002810A1 Forming leveller |