Tracheal devices
United States Patent 2765792
US Patent References:
/0507813.html
- - 0507813

Snap-fastener
- - 1389173

Ureteral catheter
- - 2285980

Respiratory device
- - 2599521


Inventors:
Nichols, Edgar B.
Publication Date:
10/09/1956
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Assignee:
Nichols, Edgar B.
Primary Class:
128/200.260
Other Classes:
128/207.170
International Classes:
A61M16/04