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LED control system
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Patent number 9,398,662
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Issue date Jul 19, 2016
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LUCIS TECHNOLOGIES HOLDINGS LIMITED
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Shan Guan
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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Light adjusting apparatus
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Patent number 4,902,936
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Issue date Feb 20, 1990
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Sharp Kabushiki Kaisha
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Yoshikado Yamada
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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Electrical devices
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Patent number 4,839,562
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Issue date Jun 13, 1989
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Colin R. Francis
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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Constant illumination control system
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Patent number 4,135,116
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Issue date Jan 16, 1979
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The United States of America as represented by the Secretary of the Navy
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Maurice N. Smith
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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3833794
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Patent number 3,833,794
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Issue date Sep 3, 1974
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G05 - CONTROLLING REGULATING
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3670202
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Patent number 3,670,202
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Issue date Jun 13, 1972
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G01 - MEASURING TESTING
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3646439
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Patent number 3,646,439
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Issue date Feb 29, 1972
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G05 - CONTROLLING REGULATING