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Blood suction device
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Patent number 4,416,658
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Issue date Nov 22, 1983
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Senko Medical Instrument Mfg. Co.
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Masaaki Numazawa
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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3918453
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Patent number 3,918,453
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Issue date Nov 11, 1975
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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3494363
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Patent number 3,494,363
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Issue date Feb 10, 1970
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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2275167
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Patent number 2,275,167
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Issue date Mar 3, 1942
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE