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Closed end hollow stylet assembly
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Patent number 5,098,411
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Issue date Mar 24, 1992
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Pudenz-Schulte Medical Research Corporation
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David A. Watson
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Siphon control device
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Patent number 4,795,437
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Issue date Jan 3, 1989
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Pudenz-Schulte Medical Research Corporation
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Rudolf R. Schulte
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Burr-hole flow control valve
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Patent number 4,636,194
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Issue date Jan 13, 1987
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Pudenz Schulte Medical Research Corp.
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Rudolf R. Schulte
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Infusion reservoir and pump system
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Patent number 4,588,394
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Issue date May 13, 1986
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Pudenz Schulte Medical Research Corp.
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Rudolf R. Schulte
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Flow control valve
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Patent number 4,560,375
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Issue date Dec 24, 1985
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Pudenz Schulte Medical Research Corp.
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Rudolf R. Schulte
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Flow control valve
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Patent number 4,552,553
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Issue date Nov 12, 1985
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Pudenz Schulte Medical Research Corp.
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Rudolf R. Schulte
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Surgical drain
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Patent number D265585
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Issue date Jul 27, 1982
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Pudenz Schulte Medical Research Corp.
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Gary P. East
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D24 - Medical and laboratory equipment