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3711751
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Patent number 3,711,751
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Issue date Jan 16, 1973
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H01 - BASIC ELECTRIC ELEMENTS
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1020698
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Patent number 1,020,698
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Issue date Mar 19, 1912
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H01 - BASIC ELECTRIC ELEMENTS
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1004532
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Patent number 1,004,532
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Issue date Sep 26, 1911
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H01 - BASIC ELECTRIC ELEMENTS
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988767
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Patent number 988,767
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Issue date Apr 4, 1911
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H01 - BASIC ELECTRIC ELEMENTS
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914879
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Patent number 914,879
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Issue date Mar 9, 1909
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H01 - BASIC ELECTRIC ELEMENTS
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887096
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Patent number 887,096
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Issue date May 12, 1908
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H01 - BASIC ELECTRIC ELEMENTS
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864695
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Patent number 864,695
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Issue date Aug 27, 1907
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H01 - BASIC ELECTRIC ELEMENTS
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856933
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Patent number 856,933
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Issue date Jun 11, 1907
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H01 - BASIC ELECTRIC ELEMENTS
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827781
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Patent number 827,781
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Issue date Aug 7, 1906
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H01 - BASIC ELECTRIC ELEMENTS
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827782
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Patent number 827,782
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Issue date Aug 7, 1906
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H01 - BASIC ELECTRIC ELEMENTS
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767103
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Patent number 767,103
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Issue date Aug 9, 1904
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H01 - BASIC ELECTRIC ELEMENTS
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766468
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Patent number 766,468
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Issue date Aug 2, 1904
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H01 - BASIC ELECTRIC ELEMENTS
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745280
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Patent number 745,280
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Issue date Nov 24, 1903
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H01 - BASIC ELECTRIC ELEMENTS
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716583
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Patent number 716,583
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Issue date Dec 23, 1902
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H01 - BASIC ELECTRIC ELEMENTS
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716584
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Patent number 716,584
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Issue date Dec 23, 1902
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H01 - BASIC ELECTRIC ELEMENTS
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708182
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Patent number 708,182
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Issue date Sep 2, 1902
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H01 - BASIC ELECTRIC ELEMENTS
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689438
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Patent number 689,438
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Issue date Dec 24, 1901
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H01 - BASIC ELECTRIC ELEMENTS
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686295
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Patent number 686,295
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Issue date Nov 12, 1901
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H01 - BASIC ELECTRIC ELEMENTS
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677498
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Patent number 677,498
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Issue date Jul 2, 1901
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H01 - BASIC ELECTRIC ELEMENTS
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677499
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Patent number 677,499
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Issue date Jul 2, 1901
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H01 - BASIC ELECTRIC ELEMENTS
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670142
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Patent number 670,142
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Issue date Mar 19, 1901
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H01 - BASIC ELECTRIC ELEMENTS
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669291
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Patent number 669,291
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Issue date Mar 5, 1901
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H01 - BASIC ELECTRIC ELEMENTS
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649015
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Patent number 649,015
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Issue date May 8, 1900
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H01 - BASIC ELECTRIC ELEMENTS