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Press brake work piece alignment apparatus
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Patent number 3,996,777
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Issue date Dec 14, 1976
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Lawrence Peska Associates, Inc.
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Rolf Ekberg
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2857968
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Patent number 2,857,968
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Issue date Oct 28, 1958
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2305191
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Patent number 2,305,191
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Issue date Dec 15, 1942
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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1955671
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Patent number 1,955,671
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Issue date Apr 17, 1934
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1923937
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Patent number 1,923,937
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Issue date Aug 22, 1933
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1685539
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Patent number 1,685,539
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Issue date Sep 25, 1928
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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1141644
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Patent number 1,141,644
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Issue date Jun 1, 1915
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B26 - HAND CUTTING TOOLS CUTTING SEVERING
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1110810
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Patent number 1,110,810
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Issue date Sep 15, 1914
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B26 - HAND CUTTING TOOLS CUTTING SEVERING