Metal deforming – By use of non-deforming work-gripping clamp and relatively... – Clamp structure constitutes sole initial metal-deforming...
Patent
1977-03-15
1979-03-06
Keenan, Michael J.
Metal deforming
By use of non-deforming work-gripping clamp and relatively...
Clamp structure constitutes sole initial metal-deforming...
B21D 504
Patent
active
041423950
ABSTRACT:
Machine for bending sheet metal, consisting of an upper and a lower clamp plate for holding the sheet metal and a bending plate which is swingable about an axis located between the clamp plates for forming the sheet metal.
REFERENCES:
patent: 941783 (1909-11-01), Keene
patent: 1402801 (1922-01-01), Schott
patent: 2478854 (1949-08-01), Webb
patent: 2687162 (1954-08-01), Smith
patent: 2905224 (1959-09-01), Allison
patent: 3380280 (1968-04-01), Wise
Baumgarten Montage GmbH
Blodgett Gerry A.
Blodgett Norman S.
Keenan Michael J.
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