Cold weather face mask
United States Patent 2818857
US Patent References:
Fabric for masks and protective clothing
- - 2173781
Nonfreezing mouthpiece
- - 2314889
Insulated sound transmitting ear cells for a cap
- - 2743454
Fabric for masks and protective clothing
- - 2173781
Nonfreezing mouthpiece
- - 2314889
Insulated sound transmitting ear cells for a cap
- - 2743454
Inventors:
Hubert, Wilkins
Lastnik, Abraham L.
Lastnik, Abraham L.
Publication Date:
01/07/1958
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Assignee:
Hubert, Wilkins
Lastnik, Abraham L.
Lastnik, Abraham L.
Primary Class:
International Classes:
A61F9/02; A62B18/00