Sheet metal working tool

Details Sheet metal working tool Sheet metal working tool

1975-11-19

1977-07-12

Lanham, C.W.

Metal deforming

By or with work-constrainer and/or manipulated work-forcer

Comprising lever manipulated to force work

7 146, 29267, 72479, 81 3R, 113120BB, 220284, B21D 1900

Patent

active

040345955

ABSTRACT:
A sheet metal working tool for turning an edge of sheet metal perpendicular to the main portion of the sheet metal and for opening Pittsburgh locks formed in said metal.

REFERENCES:
patent: 1286488 (1918-12-01), Amberg
patent: 1299974 (1919-04-01), Lorenz
patent: 1656104 (1928-01-01), Dunbar
patent: 1676648 (1928-07-01), Hardiman
patent: 2694326 (1954-11-01), Lewis
patent: 2938413 (1960-05-01), Pauls
patent: 3713200 (1973-01-01), Burns
patent: 3736643 (1973-05-01), Pepe

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