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Alfred Zwies
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New York, NY, US
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last 30 patents
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Patent Grant
Mask for the safe delivery of inhalation gases to small laboratory...
Patent number
4,332,244
Issue date
Jun 1, 1982
The Government of the United States as represented by the Secretary of Depart...
David E. Levy
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE