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3398077
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Patent number 3,398,077
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Issue date Aug 20, 1968
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C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
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3349020
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Patent number 3,349,020
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Issue date Oct 24, 1967
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C07 - ORGANIC CHEMISTRY
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3320443
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Patent number 3,320,443
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Issue date May 16, 1967
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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2876077
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Patent number 2,876,077
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Issue date Mar 3, 1959
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C01 - INORGANIC CHEMISTRY
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2864757
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Patent number 2,864,757
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Issue date Dec 16, 1958
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C01 - INORGANIC CHEMISTRY
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2704274
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Patent number 2,704,274
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Issue date Mar 15, 1955
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C01 - INORGANIC CHEMISTRY
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1937832
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Patent number 1,937,832
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Issue date Dec 5, 1933
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C01 - INORGANIC CHEMISTRY
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1575587
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Patent number 1,575,587
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Issue date Mar 2, 1926
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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1273929
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Patent number 1,273,929
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Issue date Jul 30, 1918
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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Patent number 1,149,254
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Issue date Aug 10, 1915
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C01 - INORGANIC CHEMISTRY
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1074106
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Patent number 1,074,106
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Issue date Sep 30, 1913
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C01 - INORGANIC CHEMISTRY