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3699384
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Patent number 3,699,384
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Issue date Oct 17, 1972
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H01 - BASIC ELECTRIC ELEMENTS
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3668453
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Patent number 3,668,453
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Issue date Jun 6, 1972
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H01 - BASIC ELECTRIC ELEMENTS
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3662205
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Patent number 3,662,205
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Issue date May 9, 1972
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H01 - BASIC ELECTRIC ELEMENTS
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3659132
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Patent number 3,659,132
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H01 - BASIC ELECTRIC ELEMENTS
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3265929
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Patent number 3,265,929
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Issue date Aug 9, 1966
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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3252041
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Patent number 3,252,041
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Issue date May 17, 1966
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H01 - BASIC ELECTRIC ELEMENTS
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3226598
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Patent number 3,226,598
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Issue date Dec 28, 1965
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H01 - BASIC ELECTRIC ELEMENTS
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3073983
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Patent number 3,073,983
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Issue date Jan 15, 1963
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H01 - BASIC ELECTRIC ELEMENTS
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2917649
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Patent number 2,917,649
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Issue date Dec 15, 1959
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H01 - BASIC ELECTRIC ELEMENTS
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2902618
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Patent number 2,902,618
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Issue date Sep 1, 1959
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H01 - BASIC ELECTRIC ELEMENTS
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2776392
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Patent number 2,776,392
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Issue date Jan 1, 1957
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H01 - BASIC ELECTRIC ELEMENTS
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2726898
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Patent number 2,726,898
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Issue date Dec 13, 1955
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H01 - BASIC ELECTRIC ELEMENTS
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2495831
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Patent number 2,495,831
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Issue date Jan 31, 1950
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H01 - BASIC ELECTRIC ELEMENTS
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2479853
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Patent number 2,479,853
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Issue date Aug 23, 1949
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H01 - BASIC ELECTRIC ELEMENTS
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2447637
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Patent number 2,447,637
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H01 - BASIC ELECTRIC ELEMENTS
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2041595
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Patent number 2,041,595
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H01 - BASIC ELECTRIC ELEMENTS
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2020962
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Patent number 2,020,962
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Issue date Nov 12, 1935
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H01 - BASIC ELECTRIC ELEMENTS
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2003023
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Patent number 2,003,023
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Issue date May 28, 1935
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H01 - BASIC ELECTRIC ELEMENTS
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1951732
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Patent number 1,951,732
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H01 - BASIC ELECTRIC ELEMENTS
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1942317
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Patent number 1,942,317
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H01 - BASIC ELECTRIC ELEMENTS
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1929656
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Patent number 1,929,656
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Issue date Oct 10, 1933
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H01 - BASIC ELECTRIC ELEMENTS
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1865512
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Patent number 1,865,512
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H01 - BASIC ELECTRIC ELEMENTS
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1769092
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Patent number 1,769,092
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H01 - BASIC ELECTRIC ELEMENTS
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1677689
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Patent number 1,677,689
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H01 - BASIC ELECTRIC ELEMENTS
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1652899
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Patent number 1,652,899
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Issue date Dec 13, 1927
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H01 - BASIC ELECTRIC ELEMENTS
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1410606
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Patent number 1,410,606
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Issue date Mar 28, 1922
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H01 - BASIC ELECTRIC ELEMENTS