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Reflex camera light detecting arrangement
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Patent number 4,064,516
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Issue date Dec 20, 1977
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Optigon Research & Development Corporation
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Thomas D. McLaughlin
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Viewing system for reflex camera
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Patent number 4,047,207
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Issue date Sep 6, 1977
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Optigon Research & Development Corporation
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Richard M. Altman
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Camera viewfinding system
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Patent number 4,047,222
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Issue date Sep 6, 1977
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Optigon Research & Development Corporation
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Jacob Moskovich
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Camera
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Patent number D244055
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Issue date Apr 12, 1977
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Optigon Research & Development Corporation
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Moto Shimano
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D16 - Photography and optical equipment
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Camera
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Patent number D244054
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Issue date Apr 12, 1977
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Optigon Research & Development Corporation
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Moto Shimano
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D16 - Photography and optical equipment
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Wide angle objective
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Patent number 3,975,090
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Issue date Aug 17, 1976
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Optigon Research & Development Corporation
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John A. Lawson
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G02 - OPTICS
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Lens
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Patent number 3,961,844
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Issue date Jun 8, 1976
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Optigon Research & Development Corporation
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Ellis I. Betensky
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G02 - OPTICS