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2531647
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Patent number 2,531,647
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Issue date Nov 28, 1950
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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2522006
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Patent number 2,522,006
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Issue date Sep 12, 1950
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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2494773
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Patent number 2,494,773
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Issue date Jan 17, 1950
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B24 - GRINDING POLISHING
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2492684
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Patent number 2,492,684
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Issue date Dec 27, 1949
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B28 - WORKING CEMENT, CLAY, OR STONE
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2235582
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Patent number 2,235,582
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Issue date Mar 18, 1941
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2225784
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Patent number 2,225,784
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Issue date Dec 24, 1940
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2210370
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Patent number 2,210,370
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Issue date Aug 6, 1940
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B08 - CLEANING
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2177347
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Patent number 2,177,347
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Issue date Oct 24, 1939
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2176163
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Patent number 2,176,163
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Issue date Oct 17, 1939
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B24 - GRINDING POLISHING
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2097955
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Patent number 2,097,955
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Issue date Nov 2, 1937
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2061581
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Patent number 2,061,581
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Issue date Nov 24, 1936
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2044481
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Patent number 2,044,481
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Issue date Jun 16, 1936
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2011984
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Patent number 2,011,984
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Issue date Aug 20, 1935
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1999138
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Patent number 1,999,138
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Issue date Apr 23, 1935
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B24 - GRINDING POLISHING
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1964052
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Patent number 1,964,052
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Issue date Jun 26, 1934
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A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
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1942453
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Patent number 1,942,453
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Issue date Jan 9, 1934
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1913975
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Patent number 1,913,975
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Issue date Jun 13, 1933
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1909743
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Patent number 1,909,743
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Issue date May 16, 1933
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B24 - GRINDING POLISHING
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1907938
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Patent number 1,907,938
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Issue date May 9, 1933
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B24 - GRINDING POLISHING
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1888302
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Patent number 1,888,302
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Issue date Nov 22, 1932
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
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1793469
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Patent number 1,793,469
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Issue date Feb 24, 1931
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1737485
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Patent number 1,737,485
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Issue date Nov 26, 1929
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B24 - GRINDING POLISHING
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1682784
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Patent number 1,682,784
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Issue date Sep 4, 1928
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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1682471
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Patent number 1,682,471
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Issue date Aug 28, 1928
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1571813
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Patent number 1,571,813
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Issue date Feb 2, 1926
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B24 - GRINDING POLISHING
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1560658
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Patent number 1,560,658
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Issue date Nov 10, 1925
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B24 - GRINDING POLISHING
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1535813
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Patent number 1,535,813
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Issue date Apr 28, 1925
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B24 - GRINDING POLISHING
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1508780
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Patent number 1,508,780
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Issue date Sep 16, 1924
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1504994
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Patent number 1,504,994
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Issue date Aug 12, 1924
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1462420
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Patent number 1,462,420
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Issue date Jul 17, 1923
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B24 - GRINDING POLISHING