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3109962
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Patent number 3,109,962
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Issue date Nov 5, 1963
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H01 - BASIC ELECTRIC ELEMENTS
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3036248
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Patent number 3,036,248
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Issue date May 22, 1962
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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2985801
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Patent number 2,985,801
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Issue date May 23, 1961
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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2951188
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Patent number 2,951,188
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H01 - BASIC ELECTRIC ELEMENTS
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2872626
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H01 - BASIC ELECTRIC ELEMENTS
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2216588
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Issue date Oct 1, 1940
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H01 - BASIC ELECTRIC ELEMENTS
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2216597
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Patent number 2,216,597
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Issue date Oct 1, 1940
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H01 - BASIC ELECTRIC ELEMENTS
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2199477
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Patent number 2,199,477
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H01 - BASIC ELECTRIC ELEMENTS
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2112098
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Patent number 2,112,098
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H01 - BASIC ELECTRIC ELEMENTS
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1935662
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G07 - CHECKING-DEVICES
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1934663
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Patent number 1,934,663
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G07 - CHECKING-DEVICES
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1934664
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Patent number 1,934,664
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Issue date Nov 7, 1933
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G07 - CHECKING-DEVICES
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1934665
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Issue date Nov 7, 1933
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G07 - CHECKING-DEVICES
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1934662
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Patent number 1,934,662
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Issue date Nov 7, 1933
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G07 - CHECKING-DEVICES
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1871170
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Patent number 1,871,170
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H01 - BASIC ELECTRIC ELEMENTS
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1869222
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Patent number 1,869,222
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H01 - BASIC ELECTRIC ELEMENTS
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1848270
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Patent number 1,848,270
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H01 - BASIC ELECTRIC ELEMENTS
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1724863
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Patent number 1,724,863
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Issue date Aug 13, 1929
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H01 - BASIC ELECTRIC ELEMENTS
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1699404
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Patent number 1,699,404
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H01 - BASIC ELECTRIC ELEMENTS
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1699125
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Patent number 1,699,125
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H01 - BASIC ELECTRIC ELEMENTS
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1694240
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Patent number 1,694,240
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H01 - BASIC ELECTRIC ELEMENTS
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1641643
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H01 - BASIC ELECTRIC ELEMENTS
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1590952
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Patent number 1,590,952
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H01 - BASIC ELECTRIC ELEMENTS
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1483433
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H01 - BASIC ELECTRIC ELEMENTS
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1481938
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Patent number 1,481,938
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Issue date Jan 29, 1924
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H01 - BASIC ELECTRIC ELEMENTS
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1473971
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Patent number 1,473,971
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Issue date Nov 13, 1923
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H01 - BASIC ELECTRIC ELEMENTS
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1471840
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Patent number 1,471,840
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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1437074
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Patent number 1,437,074
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H01 - BASIC ELECTRIC ELEMENTS