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3697189
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Patent number 3,697,189
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Issue date Oct 10, 1972
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3344797
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Patent number 3,344,797
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Issue date Oct 3, 1967
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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3279485
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Patent number 3,279,485
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Issue date Oct 18, 1966
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G05 - CONTROLLING REGULATING
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3257913
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Patent number 3,257,913
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Issue date Jun 28, 1966
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3043273
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Patent number 3,043,273
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Issue date Jul 10, 1962
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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2977931
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Patent number 2,977,931
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Issue date Apr 4, 1961
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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2326396
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Patent number 2,326,396
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Issue date Aug 10, 1943
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B24 - GRINDING POLISHING
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2045074
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Patent number 2,045,074
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Issue date Jun 23, 1936
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
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1917054
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Patent number 1,917,054
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Issue date Jul 4, 1933
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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1766548
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Patent number 1,766,548
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Issue date Jun 24, 1930
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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1723589
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Patent number 1,723,589
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Issue date Aug 6, 1929
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B24 - GRINDING POLISHING
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1506862
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Patent number 1,506,862
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Issue date Sep 2, 1924
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1382119
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Patent number 1,382,119
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Issue date Jun 21, 1921
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES