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Production of ultra-violet radiation
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Patent number 3,942,018
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Issue date Mar 2, 1976
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The Electricity Council
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David Preston Simpson
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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3586904
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Patent number 3,586,904
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Issue date Jun 22, 1971
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H01 - BASIC ELECTRIC ELEMENTS
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3395300
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Patent number 3,395,300
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Issue date Jul 30, 1968
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H01 - BASIC ELECTRIC ELEMENTS
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3290553
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Patent number 3,290,553
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Issue date Dec 6, 1966
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H01 - BASIC ELECTRIC ELEMENTS
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3134921
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Patent number 3,134,921
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Issue date May 26, 1964
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H01 - BASIC ELECTRIC ELEMENTS
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3104949
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Patent number 3,104,949
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Issue date Sep 24, 1963
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C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
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2976451
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Patent number 2,976,451
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Issue date Mar 21, 1961
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H01 - BASIC ELECTRIC ELEMENTS
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2913620
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Patent number 2,913,620
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Issue date Nov 17, 1959
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G06 - COMPUTING CALCULATING COUNTING
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2727168
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Patent number 2,727,168
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Issue date Dec 13, 1955
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H01 - BASIC ELECTRIC ELEMENTS
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2724786
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Patent number 2,724,786
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Issue date Nov 22, 1955
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H01 - BASIC ELECTRIC ELEMENTS
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2712086
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Patent number 2,712,086
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Issue date Jun 28, 1955
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H01 - BASIC ELECTRIC ELEMENTS
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2707245
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Patent number 2,707,245
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Issue date Apr 26, 1955
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H01 - BASIC ELECTRIC ELEMENTS
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2679611
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Patent number 2,679,611
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Issue date May 25, 1954
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H01 - BASIC ELECTRIC ELEMENTS
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2650318
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Patent number 2,650,318
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Issue date Aug 25, 1953
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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2555843
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Patent number 2,555,843
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Issue date Jun 5, 1951
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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2554733
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Patent number 2,554,733
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Issue date May 29, 1951
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H01 - BASIC ELECTRIC ELEMENTS
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2541842
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Patent number 2,541,842
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Issue date Feb 13, 1951
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H01 - BASIC ELECTRIC ELEMENTS
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2523056
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Patent number 2,523,056
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Issue date Sep 19, 1950
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H01 - BASIC ELECTRIC ELEMENTS
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2512299
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Patent number 2,512,299
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Issue date Jun 20, 1950
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H01 - BASIC ELECTRIC ELEMENTS
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2500153
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Patent number 2,500,153
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Issue date Mar 14, 1950
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H01 - BASIC ELECTRIC ELEMENTS
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2468037
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Patent number 2,468,037
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Issue date Apr 26, 1949
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H01 - BASIC ELECTRIC ELEMENTS
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2467772
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Patent number 2,467,772
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Issue date Apr 19, 1949
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H01 - BASIC ELECTRIC ELEMENTS
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2445075
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Patent number 2,445,075
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Issue date Jul 13, 1948
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H01 - BASIC ELECTRIC ELEMENTS
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2443444
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Patent number 2,443,444
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Issue date Jun 15, 1948
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H01 - BASIC ELECTRIC ELEMENTS
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2438179
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Patent number 2,438,179
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Issue date Mar 23, 1948
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H01 - BASIC ELECTRIC ELEMENTS
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2433181
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Patent number 2,433,181
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Issue date Dec 23, 1947
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H01 - BASIC ELECTRIC ELEMENTS
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2409715
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Patent number 2,409,715
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Issue date Oct 22, 1946
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H01 - BASIC ELECTRIC ELEMENTS
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2403700
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Patent number 2,403,700
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Issue date Jul 9, 1946
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H01 - BASIC ELECTRIC ELEMENTS
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2386322
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Patent number 2,386,322
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Issue date Oct 9, 1945
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H01 - BASIC ELECTRIC ELEMENTS