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1086028
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Patent number 1,086,028
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Issue date Feb 3, 1914
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H01 - BASIC ELECTRIC ELEMENTS
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1075612
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Patent number 1,075,612
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Issue date Oct 14, 1913
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H01 - BASIC ELECTRIC ELEMENTS
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1054031
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Patent number 1,054,031
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Issue date Feb 25, 1913
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H01 - BASIC ELECTRIC ELEMENTS
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884102
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Patent number 884,102
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H01 - BASIC ELECTRIC ELEMENTS
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878465
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Patent number 878,465
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H01 - BASIC ELECTRIC ELEMENTS
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746483
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H01 - BASIC ELECTRIC ELEMENTS
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726105
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H01 - BASIC ELECTRIC ELEMENTS
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H01 - BASIC ELECTRIC ELEMENTS
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H01 - BASIC ELECTRIC ELEMENTS