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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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Flexible tube for endoscope
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Patent number 6,503,193
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Issue date Jan 7, 2003
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PENTAX Corporation
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Tomoko Iwasaki
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Flexible tube for endoscope
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Patent number 6,189,574
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Issue date Feb 20, 2001
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Asahi Kogaku Kogyo Kabushiki Kaisha
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Tomoko Iwasaki
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE