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3487261
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Patent number 3,487,261
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Issue date Dec 30, 1969
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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3450946
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Patent number 3,450,946
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Issue date Jun 17, 1969
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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3348096
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Patent number 3,348,096
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Issue date Oct 17, 1967
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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3339112
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Patent number 3,339,112
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Issue date Aug 29, 1967
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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2817793
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Patent number 2,817,793
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Issue date Dec 24, 1957
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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1859377
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Patent number 1,859,377
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Issue date May 24, 1932
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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1494334
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Patent number 1,494,334
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Issue date May 20, 1924
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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1352117
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Patent number 1,352,117
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Issue date Sep 7, 1920
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER