Gastrointestinal tube
United States Patent 2498692
US Patent References:
Surgical apparatus
- - 1863234


Inventors:
Paul, Mains Marshall
Publication Date:
02/28/1950
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Assignee:
Paul, Mains Marshall
Primary Class:
604/95.040
Other Classes:
604/915
International Classes:
A61J15/00; A61M25/10; A61M31/00