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3672765
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Patent number 3,672,765
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Issue date Jun 27, 1972
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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3357574
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Patent number 3,357,574
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Issue date Dec 12, 1967
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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3323373
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Patent number 3,323,373
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Issue date Jun 6, 1967
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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3318212
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Patent number 3,318,212
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Issue date May 9, 1967
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY