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3924315
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Patent number 3,924,315
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Issue date Dec 9, 1975
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B08 - CLEANING
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3780414
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Patent number 3,780,414
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Issue date Dec 25, 1973
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3719977
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Patent number 3,719,977
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Issue date Mar 13, 1973
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3283918
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Patent number 3,283,918
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Issue date Nov 8, 1966
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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3145462
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Patent number 3,145,462
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Issue date Aug 25, 1964
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3139053
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Patent number 3,139,053
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Issue date Jun 30, 1964
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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1830760
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Patent number 1,830,760
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Issue date Nov 10, 1931
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1457663
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Patent number 1,457,663
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Issue date Jun 5, 1923
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B28 - WORKING CEMENT, CLAY, OR STONE
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1428777
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Patent number 1,428,777
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Issue date Sep 12, 1922
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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1428175
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Patent number 1,428,175
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Issue date Sep 5, 1922
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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1428176
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Patent number 1,428,176
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Issue date Sep 5, 1922
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...