Title:
Nose filter
United States Patent 2433565
US Patent References:
Nasal insert
- - 2151227

Nasal inhaler
- - 2277390


Inventors:
Alexander, Korman
Publication Date:
12/30/1947
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Assignee:
Alexander, Korman
Primary Class:
128/204.120
Other Classes:
128/206.110
International Classes:
A62B23/06; A62B23/00