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3789472
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Patent number 3,789,472
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3186029
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2948783
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G11 - INFORMATION STORAGE
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B24 - GRINDING POLISHING
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2448030
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G11 - INFORMATION STORAGE
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2393230
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2373960
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Issue date Apr 17, 1945
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G11 - INFORMATION STORAGE
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2300923
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Patent number 2,300,923
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2292383
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2265032
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Patent number 2,265,032
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G11 - INFORMATION STORAGE
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2247747
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Patent number 2,247,747
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G11 - INFORMATION STORAGE
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2214665
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2199652
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Patent number 2,199,652
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2183262
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Patent number 2,183,262
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2157176
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2011585
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1965076
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B24 - GRINDING POLISHING
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1952492
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Patent number 1,952,492
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B24 - GRINDING POLISHING
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1890675
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B24 - GRINDING POLISHING
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1885848
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G11 - INFORMATION STORAGE
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1877363
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1660532
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B24 - GRINDING POLISHING
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1544083
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1476507
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1180413
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1120314
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1117660
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE