Medical case
United States Patent 2093537

Inventors:
Balint, Alvin A.
Publication Date:
09/21/1937
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Assignee:
Balint, Alvin A.
Primary Class:
206/571
Other Classes:
206/365, 422/301, 206/306, 206/38
International Classes:
A61B19/02; A61B19/00