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Color endoscope
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Patent number RE31290
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Issue date Jun 28, 1983
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Welch Allyn, Inc.
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William C. Moore
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128 - Surgery
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Color endoscope
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Patent number 4,261,344
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Issue date Apr 14, 1981
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Welch Allyn, Inc.
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William C. Moore
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Otoscope construction
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Patent number 4,006,738
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Issue date Feb 8, 1977
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Welch Allyn, Inc.
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William C. Moore
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Medical diagnostic instruments
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Patent number 3,978,850
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Issue date Sep 7, 1976
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Welch Allyn, Inc.
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William C. Moore
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE