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3646284
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Patent number 3,646,284
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Issue date Feb 29, 1972
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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3530263
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Patent number 3,530,263
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H01 - BASIC ELECTRIC ELEMENTS
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2810799
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Patent number 2,810,799
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Issue date Oct 22, 1957
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H01 - BASIC ELECTRIC ELEMENTS
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2760019
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Patent number 2,760,019
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H01 - BASIC ELECTRIC ELEMENTS
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2366784
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Patent number 2,366,784
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Issue date Jan 9, 1945
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H01 - BASIC ELECTRIC ELEMENTS
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2360774
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Patent number 2,360,774
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Issue date Oct 17, 1944
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H01 - BASIC ELECTRIC ELEMENTS
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2331632
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Patent number 2,331,632
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Issue date Oct 12, 1943
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H01 - BASIC ELECTRIC ELEMENTS
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2276786
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Patent number 2,276,786
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Issue date Mar 17, 1942
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H01 - BASIC ELECTRIC ELEMENTS
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2203350
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Patent number 2,203,350
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H01 - BASIC ELECTRIC ELEMENTS
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2099607
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Patent number 2,099,607
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H01 - BASIC ELECTRIC ELEMENTS
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1973121
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Patent number 1,973,121
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Issue date Sep 11, 1934
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H01 - BASIC ELECTRIC ELEMENTS
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1856121
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Patent number 1,856,121
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Issue date May 3, 1932
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H01 - BASIC ELECTRIC ELEMENTS
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1843052
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Patent number 1,843,052
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H01 - BASIC ELECTRIC ELEMENTS
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1776872
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Patent number 1,776,872
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H01 - BASIC ELECTRIC ELEMENTS
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1758206
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Patent number 1,758,206
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H01 - BASIC ELECTRIC ELEMENTS
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1756374
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Patent number 1,756,374
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Issue date Apr 29, 1930
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H01 - BASIC ELECTRIC ELEMENTS
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1743652
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H01 - BASIC ELECTRIC ELEMENTS
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1563859
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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1378395
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H01 - BASIC ELECTRIC ELEMENTS
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1367188
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Patent number 1,367,188
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Issue date Feb 1, 1921
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H01 - BASIC ELECTRIC ELEMENTS