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David J. Collett
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Walworth, NY, US
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last 30 patents
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Patent Grant
Photographic elements containing infrared filter dyes
Patent number
4,876,181
Issue date
Oct 24, 1989
Eastman Kodak Company
Gary S. Proehl
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Patent Grant
Photographic silver halide elements containing infrared filter dyes
Patent number
4,871,656
Issue date
Oct 3, 1989
Eastman Kodak Company
Richard L. Parton
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY