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Osmer C. Carpenter
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Schoolcraft Township, Kalamazoo County, MI, US
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last 30 patents
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Patent Grant
Two-membrane medicated device for rate-controlled administration of...
Patent number
4,237,888
Issue date
Dec 9, 1980
The Upjohn Company
Theodore J. Roseman
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE