-
2584534
-
Patent number 2,584,534
-
Issue date Feb 5, 1952
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
-
2220036
-
Patent number 2,220,036
-
Issue date Oct 29, 1940
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
-
2204222
-
Patent number 2,204,222
-
Issue date Jun 11, 1940
-
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
-
2158834
-
Patent number 2,158,834
-
Issue date May 16, 1939
-
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
-
2142112
-
Patent number 2,142,112
-
Issue date Jan 3, 1939
-
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
-
2061861
-
Patent number 2,061,861
-
Issue date Nov 24, 1936
-
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
-
2023827
-
Patent number 2,023,827
-
Issue date Dec 10, 1935
-
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
-
1936824
-
Patent number 1,936,824
-
Issue date Nov 28, 1933
-
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
-
1498824
-
Patent number 1,498,824
-
Issue date Jun 24, 1924
-
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...