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1980830
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Patent number 1,980,830
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Issue date Nov 13, 1934
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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1953803
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Patent number 1,953,803
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Issue date Apr 3, 1934
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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1879229
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Patent number 1,879,229
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Issue date Sep 27, 1932
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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1831564
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Patent number 1,831,564
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Issue date Nov 10, 1931
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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1691747
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Patent number 1,691,747
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Issue date Nov 13, 1928
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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1620395
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Patent number 1,620,395
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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1617394
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Patent number 1,617,394
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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1607030
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Patent number 1,607,030
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Issue date Nov 16, 1926
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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1575729
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Patent number 1,575,729
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Issue date Mar 9, 1926
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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1328525
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Patent number 1,328,525
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Issue date Jan 20, 1920
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER