Nasal filter
United States Patent 2660166
US Patent References:
/1317013.html
- - 1317013

Catamenial appliance
- - 1726339

Electric-meter protective means
- - 1731685

Nasal passage filter
- - 2162583


Inventors:
Coleman, Malcolm A.
Publication Date:
11/24/1953
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Assignee:
Coleman, Malcolm A.
Primary Class:
128/204.120
Other Classes:
55/520, 131/344, 131/342, 55/492, 55/DIG.005, 96/223, 128/206.110, 55/524, 55/515
International Classes:
A62B23/06; A62B23/00
Foreign References:
GB392654A
GB393516A