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2476068
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Patent number 2,476,068
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Issue date Jul 12, 1949
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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2013878
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Issue date Sep 10, 1935
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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1994635
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Patent number 1,994,635
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Issue date Mar 19, 1935
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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1977939
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Patent number 1,977,939
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Issue date Oct 23, 1934
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H03 - BASIC ELECTRONIC CIRCUITRY
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1970333
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Patent number 1,970,333
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1940386
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Patent number 1,940,386
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Issue date Dec 19, 1933
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B61 - RAILWAYS
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1920150
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Patent number 1,920,150
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Issue date Jul 25, 1933
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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1914215
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Patent number 1,914,215
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Issue date Jun 13, 1933
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G04 - HOROLOGY
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1905771
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Patent number 1,905,771
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Issue date Apr 25, 1933
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H01 - BASIC ELECTRIC ELEMENTS
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1885118
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Patent number 1,885,118
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Issue date Nov 1, 1932
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H03 - BASIC ELECTRONIC CIRCUITRY
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1858267
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Patent number 1,858,267
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H03 - BASIC ELECTRONIC CIRCUITRY
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1854863
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Patent number 1,854,863
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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1849376
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Patent number 1,849,376
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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1844790
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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1838573
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Patent number 1,838,573
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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1834129
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Patent number 1,834,129
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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1819617
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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1794288
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Patent number 1,794,288
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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1789758
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Patent number 1,789,758
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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1757704
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H03 - BASIC ELECTRONIC CIRCUITRY
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1747837
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H03 - BASIC ELECTRONIC CIRCUITRY
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1741017
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Patent number 1,741,017
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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1730216
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Patent number 1,730,216
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H01 - BASIC ELECTRIC ELEMENTS
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1726423
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B60 - VEHICLES IN GENERAL
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1719495
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H03 - BASIC ELECTRONIC CIRCUITRY
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1717722
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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1714883
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Patent number 1,714,883
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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1705539
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Patent number 1,705,539
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H01 - BASIC ELECTRIC ELEMENTS
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1696544
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Patent number 1,696,544
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B61 - RAILWAYS