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Film splice detector system
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Patent number 4,264,825
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Issue date Apr 28, 1981
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Research Technology, Inc.
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Howard Bowen
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Film thickness detector
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Patent number 4,166,700
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Issue date Sep 4, 1979
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Research Technology, Inc.
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Howard Bowen
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G01 - MEASURING TESTING
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Light responsive detector
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Patent number 3,935,468
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Issue date Jan 27, 1976
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Research Technology Incorporated
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Howard Bowen
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G01 - MEASURING TESTING