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Thermionic gas switch
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Patent number 4,611,147
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Issue date Sep 9, 1986
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The United States of America as represented by the United States Department o...
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George L. Hatch
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H01 - BASIC ELECTRIC ELEMENTS
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3587147
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Patent number 3,587,147
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Issue date Jun 28, 1971
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H01 - BASIC ELECTRIC ELEMENTS
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3244925
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Patent number 3,244,925
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Issue date Apr 5, 1966
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H01 - BASIC ELECTRIC ELEMENTS
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3204140
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Patent number 3,204,140
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Issue date Aug 31, 1965
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H01 - BASIC ELECTRIC ELEMENTS
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2637827
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Patent number 2,637,827
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Issue date May 5, 1953
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H01 - BASIC ELECTRIC ELEMENTS
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2612617
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Patent number 2,612,617
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Issue date Sep 30, 1952
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H03 - BASIC ELECTRONIC CIRCUITRY
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2453118
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Patent number 2,453,118
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Issue date Nov 9, 1948
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H01 - BASIC ELECTRIC ELEMENTS
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2212849
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Patent number 2,212,849
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Issue date Aug 27, 1940
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H01 - BASIC ELECTRIC ELEMENTS
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2181366
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Patent number 2,181,366
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Issue date Nov 28, 1939
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H01 - BASIC ELECTRIC ELEMENTS
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2156064
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Patent number 2,156,064
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Issue date Apr 25, 1939
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H01 - BASIC ELECTRIC ELEMENTS
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2128051
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Patent number 2,128,051
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Issue date Aug 23, 1938
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2121761
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Patent number 2,121,761
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Issue date Jun 21, 1938
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H01 - BASIC ELECTRIC ELEMENTS
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2114885
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Patent number 2,114,885
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Issue date Apr 19, 1938
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H01 - BASIC ELECTRIC ELEMENTS
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2100196
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Patent number 2,100,196
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Issue date Nov 23, 1937
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H01 - BASIC ELECTRIC ELEMENTS
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2089654
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Patent number 2,089,654
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Issue date Aug 10, 1937
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H01 - BASIC ELECTRIC ELEMENTS
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2088249
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Patent number 2,088,249
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Issue date Jul 27, 1937
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H01 - BASIC ELECTRIC ELEMENTS
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2081247
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Patent number 2,081,247
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Issue date May 25, 1937
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H01 - BASIC ELECTRIC ELEMENTS
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2080284
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Patent number 2,080,284
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Issue date May 11, 1937
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H01 - BASIC ELECTRIC ELEMENTS
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2075208
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Patent number 2,075,208
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Issue date Mar 30, 1937
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H01 - BASIC ELECTRIC ELEMENTS
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2058950
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Patent number 2,058,950
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Issue date Oct 27, 1936
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H01 - BASIC ELECTRIC ELEMENTS
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2048203
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Patent number 2,048,203
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Issue date Jul 21, 1936
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H01 - BASIC ELECTRIC ELEMENTS
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2043839
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Patent number 2,043,839
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Issue date Jun 9, 1936
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H01 - BASIC ELECTRIC ELEMENTS
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2034793
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Patent number 2,034,793
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Issue date Mar 24, 1936
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H01 - BASIC ELECTRIC ELEMENTS
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2034823
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Patent number 2,034,823
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Issue date Mar 24, 1936
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H01 - BASIC ELECTRIC ELEMENTS
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2027175
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Patent number 2,027,175
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Issue date Jan 7, 1936
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H01 - BASIC ELECTRIC ELEMENTS
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2016904
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Patent number 2,016,904
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Issue date Oct 8, 1935
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H01 - BASIC ELECTRIC ELEMENTS
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2001548
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Patent number 2,001,548
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Issue date May 14, 1935
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H01 - BASIC ELECTRIC ELEMENTS
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1987338
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Patent number 1,987,338
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Issue date Jan 8, 1935
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H01 - BASIC ELECTRIC ELEMENTS
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1980855
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Patent number 1,980,855
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Issue date Nov 13, 1934
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER