Gas administering equipment
United States Patent 2047216

Inventors:
Mckesson, Elmer I.
Publication Date:
07/14/1936
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Assignee:
Martha, Mckesson F.
Primary Class:
128/202.230
Other Classes:
361/215, 251/303, 139/1R, 174/102SC, 474/90, 152/DIG.002, 251/152, 174/47, 128/205.240, 128/206.260
International Classes:
A61M16/10