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2643199
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Patent number 2,643,199
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Issue date Jun 23, 1953
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H01 - BASIC ELECTRIC ELEMENTS
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2383311
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Patent number 2,383,311
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Issue date Aug 21, 1945
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H01 - BASIC ELECTRIC ELEMENTS
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2370104
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Patent number 2,370,104
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Issue date Feb 20, 1945
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H01 - BASIC ELECTRIC ELEMENTS
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2368749
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Patent number 2,368,749
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Issue date Feb 6, 1945
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C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
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2362228
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Patent number 2,362,228
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Issue date Nov 7, 1944
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H01 - BASIC ELECTRIC ELEMENTS
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2359107
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Patent number 2,359,107
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Issue date Sep 26, 1944
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H01 - BASIC ELECTRIC ELEMENTS
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2328626
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Patent number 2,328,626
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Issue date Sep 7, 1943
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H01 - BASIC ELECTRIC ELEMENTS
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2321071
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Patent number 2,321,071
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Issue date Jun 8, 1943
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H01 - BASIC ELECTRIC ELEMENTS
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2291592
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Patent number 2,291,592
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Issue date Jul 28, 1942
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H01 - BASIC ELECTRIC ELEMENTS
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2239771
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Patent number 2,239,771
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Issue date Apr 29, 1941
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H01 - BASIC ELECTRIC ELEMENTS
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2239770
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Patent number 2,239,770
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Issue date Apr 29, 1941
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H01 - BASIC ELECTRIC ELEMENTS
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2217471
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Patent number 2,217,471
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Issue date Oct 8, 1940
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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2201940
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Patent number 2,201,940
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Issue date May 21, 1940
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H01 - BASIC ELECTRIC ELEMENTS
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2172887
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Patent number 2,172,887
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Issue date Sep 12, 1939
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H01 - BASIC ELECTRIC ELEMENTS
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2165029
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Patent number 2,165,029
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Issue date Jul 4, 1939
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H01 - BASIC ELECTRIC ELEMENTS
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2129947
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Patent number 2,129,947
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Issue date Sep 13, 1938
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H01 - BASIC ELECTRIC ELEMENTS
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2095782
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Patent number 2,095,782
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Issue date Oct 12, 1937
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H01 - BASIC ELECTRIC ELEMENTS
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2095783
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Patent number 2,095,783
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Issue date Oct 12, 1937
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H01 - BASIC ELECTRIC ELEMENTS
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2095781
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Patent number 2,095,781
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Issue date Oct 12, 1937
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H01 - BASIC ELECTRIC ELEMENTS
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2070321
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Patent number 2,070,321
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H01 - BASIC ELECTRIC ELEMENTS
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2068557
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Patent number 2,068,557
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Issue date Jan 19, 1937
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H01 - BASIC ELECTRIC ELEMENTS
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2046153
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Patent number 2,046,153
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H01 - BASIC ELECTRIC ELEMENTS
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1949383
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Patent number 1,949,383
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Issue date Feb 27, 1934
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H03 - BASIC ELECTRONIC CIRCUITRY
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1926132
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Patent number 1,926,132
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Issue date Sep 12, 1933
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H01 - BASIC ELECTRIC ELEMENTS
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1924300
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Patent number 1,924,300
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Issue date Aug 29, 1933
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H01 - BASIC ELECTRIC ELEMENTS
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1894260
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Patent number 1,894,260
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H01 - BASIC ELECTRIC ELEMENTS
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1868175
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Patent number 1,868,175
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H01 - BASIC ELECTRIC ELEMENTS
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1811603
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Patent number 1,811,603
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Issue date Jun 23, 1931
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H01 - BASIC ELECTRIC ELEMENTS
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1799655
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Patent number 1,799,655
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Issue date Apr 7, 1931
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H01 - BASIC ELECTRIC ELEMENTS
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1765502
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Patent number 1,765,502
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Issue date Jun 24, 1930
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H01 - BASIC ELECTRIC ELEMENTS