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Image detector with background suppression
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Patent number 3,996,599
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Issue date Dec 7, 1976
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The United States of America as represented by the Secretary of the Army
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Gerard J. King
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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3896484
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Patent number 3,896,484
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Issue date Jul 22, 1975
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G11 - INFORMATION STORAGE
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3745427
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Patent number 3,745,427
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Issue date Jul 10, 1973
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C01 - INORGANIC CHEMISTRY
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3716424
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Patent number 3,716,424
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Issue date Feb 13, 1973
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H01 - BASIC ELECTRIC ELEMENTS
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3621565
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Patent number 3,621,565
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Issue date Nov 23, 1971
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H01 - BASIC ELECTRIC ELEMENTS
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3617975
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Patent number 3,617,975
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Issue date Nov 2, 1971
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H01 - BASIC ELECTRIC ELEMENTS