| Patents for B21D 21 - Combined processes according to methods covered by groups (343) |
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| 10/27/1999 | CN2345300Y Electric multifunction metal-piece making machine |
| 09/22/1999 | CN2339329Y Machine-table structure for slotting magazine of integrated circuit |
| 04/15/1999 | DE19744521A1 Apparatus for roll forming and multiaxial bending of metal sections |
| 04/07/1999 | CN2312777Y Roller press for processing internal angle retainer of steel coil-plate |
| 02/17/1999 | CN2307646Y Single-flat and combined angle compatible type felling machine |
| 02/09/1999 | US5868655 Convertible multistation press |
| 11/11/1998 | CN2296782Y Roller for thin iron machine |
| 09/08/1998 | US5802906 Machine used for folding, profiling and cutting metal sheets |
| 08/04/1998 | US5787961 Thixocasting process, for a thixocasting alloy material |
| 06/30/1998 | US5771561 Convertible multistation press |
| 10/15/1997 | EP0801202A2 Lattice cross assembly device |
| 05/14/1997 | EP0773078A1 Convertible multistage press |
| 12/18/1996 | CN1033563C Single-forming mould for square-section helical tubes |
| 11/13/1996 | EP0742055A1 A sheet-metal bending, profiling and cutting machine |
| 07/31/1996 | EP0724061A2 Connecting element |
| 04/25/1996 | DE19538242A1 Thixo-Giessverfahren und Thixo-Giesslegierungsmaterial Thixocasting casting and thixocasting Giesslegierungsmaterial |
| 03/12/1996 | US5498329 Vehicle wash apparatus using reclaimed water |
| 04/18/1995 | US5406819 Method and equipment for forming the axle housing of an automobile using an integral steel tube |
| 10/05/1994 | CN1026086C Connector of convey belt and production of same |
| 01/12/1994 | EP0578268A1 Cross bar connector |
| 01/05/1994 | EP0577150A1 Metal window bar profile and its fabrication process |
| 07/07/1993 | CN1073898A Forming method and equipment for integral automobile bridge casing using steel pipe |
| 02/02/1993 | US5182933 Making a belt end fastener |
| 12/16/1992 | CN2124780U Portable forming machine |
| 11/24/1992 | US5165309 Maintaining a preferred vibration mode in an annular article |
| 08/12/1992 | CN1063431A Single-forming mould for square-section helical tubes |
| 04/01/1992 | EP0477513A2 Connection device for a window bar grid |
| 04/01/1992 | EP0477469A1 Method to produce a device to connect belt or similar conveyors and the connecting device produced thereby |
| 03/25/1992 | CN1059698A Method of producing devices for interconnecting conveyor or similar belts and connectors produced by method |
| 03/17/1992 | US5095733 Maintaining a preferred vibration mode in an annular article |
| 01/08/1991 | US4983640 Methods for preparing a formed cellular plastic material pattern employed in metal casting |
| 10/03/1990 | EP0390355A1 Maintaining a preferred vibration mode in an annular article |
| 09/28/1990 | CA2012930A1 Maintaining a preferred vibration mode in an annular article |
| 11/29/1988 | CA1245539A1 Tube expanding and grooving tool and method |
| 03/05/1985 | CA1183311A1 Honeycomb manufacturing method and product |
| 02/19/1985 | CA1182734A1 Bending tool |
| 11/06/1984 | CA1177233A1 Method for reworking of a fluid pipeline, namely a subseau pipeline |
| 07/03/1984 | US4457963 Honeycomb manufacturing method and product |
| 10/25/1983 | US4411381 Honeycomb manufacturing method |
| 07/05/1983 | US4391119 Apparatus for cutting swivel-bending and press-bending sheet metal and similar materials |
| 04/03/1979 | CA1051763A1 Method and apparatus for forming saw chain cutter links |
| 02/21/1978 | US4074495 Sheet metal panel |
| 06/07/1977 | US4027517 Method and apparatus for embossing sheet metal strip and sheet metal panel |