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Ultrasonic observing apparatus
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Patent number 5,107,844
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Issue date Apr 28, 1992
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Olympus Optical Co., Ltd.
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Kuniaki Kami
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Borescope apparatus
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Patent number 5,096,292
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Issue date Mar 17, 1992
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Olympus Optical Co., Ltd.
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Nobuyuki Sakamoto
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Borescope apparatus
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Patent number 4,991,957
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Issue date Feb 12, 1991
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Olympus Optical Co., Ltd.
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Nobuyuki Sakamoto
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE