Catheter device
United States Patent 2831487
US Patent References:
/1206045.html
- - 1206045
Respirator
- - 1610793
Respirator and method of making the same
- - 2290885
Breath diverter face mask
- - 2457044
Nasal and sinus protector and warmer
- - 2468383
/1206045.html
- - 1206045
Respirator
- - 1610793
Respirator and method of making the same
- - 2290885
Breath diverter face mask
- - 2457044
Nasal and sinus protector and warmer
- - 2468383
Inventors:
Tafilaw, Maxine A.
Publication Date:
04/22/1958
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Assignee:
Tafilaw, Maxine A.
Primary Class:
Other Classes:
128/DIG.026, 128/207.180, 128/205.250, 128/206.280
International Classes:
A61M5/52; A61M25/02; A61M31/00
US Patent References:
| 2663297 | Nasal adapter for oxygen inhalation |
Foreign References:
| GB492723A |