|
| Patents for B21D 35 - Combined processes according to methods covered by groups (2,318) |
|---|
| 03/06/1979 | US4142396 Blanking and forming tapered wall articles | | 01/02/1979 | US4132102 Machine to work sheet material | | 12/26/1978 | US4130927 Process and an apparatus for the continuous mechanical fabrication of starting sheets for the electrolytic refining of metals, especially copper | | 12/12/1978 | US4129024 Method and apparatus for forming elongated, tapered wall shells | | 10/03/1978 | US4117708 Method of making housing cover and tube | | 09/19/1978 | US4114417 Method and apparatus for making metal parts | | 05/09/1978 | US4088005 Combined rotary progressive die | | 03/07/1978 | US4077246 Percussion cap forming tool | | 06/21/1977 | US4030335 Multi-function metal-working machine | | 06/14/1977 | US4028925 Apparatus and method for forming barbed tape | | 03/29/1977 | US4014201 Apparatus and method for forming truss tubular web components having flat symmetrically bifurcated ends | | 03/22/1977 | US4012934 Multipurpose metal working machine | | 01/11/1977 | US4002049 Forming tool for use in a die assembly | | 01/04/1977 | US4001542 Method and apparatus for forming a stream feeder | | 10/19/1976 | US3986470 Method and means for straight line manufacture of sheet metal duct elements | | 09/28/1976 | US3982457 Notching machine | | 09/07/1976 | US3978705 Method and apparatus for the manufacture of a thin sheet orifice plate | | 07/13/1976 | US3968673 Method and apparatus for producing steel box toes to be used in safety shoes |
|