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Flexible tube for endoscope
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Patent number 6,616,601
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Issue date Sep 9, 2003
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PENTAX Corporation
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Shinji Hayakawa
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Flexible tube for endoscope
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Patent number 6,520,214
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Issue date Feb 18, 2003
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PENTAX Corporation
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Akira Sugiyama
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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External component of endoscope
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Patent number 6,372,357
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Issue date Apr 16, 2002
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Asahi Kogaku Kogyo Kabushiki Kaisha
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Shinji Hayakawa
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE