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3332311
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Patent number 3,332,311
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Issue date Jul 25, 1967
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2562721
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Patent number 2,562,721
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Issue date Jul 31, 1951
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2562724
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Patent number 2,562,724
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Issue date Jul 31, 1951
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2556465
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Patent number 2,556,465
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Issue date Jun 12, 1951
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2543063
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Patent number 2,543,063
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Issue date Feb 27, 1951
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2535079
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Patent number 2,535,079
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Issue date Dec 26, 1950
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2492605
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Patent number 2,492,605
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Issue date Dec 27, 1949
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2492590
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Patent number 2,492,590
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Issue date Dec 27, 1949
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2445803
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Patent number 2,445,803
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Issue date Jul 27, 1948
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2436185
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Patent number 2,436,185
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Issue date Feb 17, 1948
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2432580
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Patent number 2,432,580
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Issue date Dec 16, 1947
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2429239
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Patent number 2,429,239
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Issue date Oct 21, 1947
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2421769
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Patent number 2,421,769
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Issue date Jun 10, 1947
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2359629
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Patent number 2,359,629
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Issue date Oct 3, 1944
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2342732
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Patent number 2,342,732
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Issue date Feb 29, 1944
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2342866
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Patent number 2,342,866
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Issue date Feb 29, 1944
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2295075
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Patent number 2,295,075
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Issue date Sep 8, 1942
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...