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Ultrasonic endoscope
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Patent number 5,097,838
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Issue date Mar 24, 1992
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Olympus Optical Co., Ltd.
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Kenji Hirooka
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Ultrasonic endoscope apparatus
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Patent number 5,054,491
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Issue date Oct 8, 1991
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Olympus Optical Co., Ltd.
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Yoshitake Saito
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Endoscope apparatus
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Patent number 4,982,724
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Issue date Jan 8, 1991
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Olympus Opicals Co.
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Yoshitake Saito
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Ultrasonic diagnostic apparatus
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Patent number 4,957,112
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Issue date Sep 18, 1990
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Olympus Optical Co., Ltd.
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Takeshi Yokoi
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Endoscope apparatus
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Patent number 4,867,136
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Issue date Sep 19, 1989
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Olympus Optical Co., Ltd.
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Akira Suzuki
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE