United States Patent 2735432
US Patent References:
/0399985.html
- - 0399985

Tubular article comprising rubberlike material
- - 2458305

Nasal cannula
- - 2693800


Publication Date:
02/21/1956
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Primary Class:
128/207.180
Other Classes:
128/DIG.026
International Classes:
A61M16/06
Foreign References:
FR762087A