Cannula button for surgical operations and method of use
United States Patent 2431587
US Patent References:
Surgical drain
- - 1863057


Inventors:
Schnee, Charles F.
Publication Date:
11/25/1947
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Assignee:
Schnee, Charles F.
Primary Class:
604/8
International Classes:
A61M1/00
Foreign References:
FR414177A
FR847229A