Ear protector
United States Patent 2812517
US Patent References:
/0316029.html
- - 0316029

/1297742.html
- - 1297742

Ear guard
- - 1909856

Ear protector
- - 2060553

Ear protector
- - 2118273


Inventors:
Bogart, Frances E.
Gladys, Grams
Publication Date:
11/12/1957
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Assignee:
Bogart, Frances E.
Gladys, Grams
Primary Class:
2/174
Other Classes:
2/209
International Classes:
A61F11/06; A61F11/00
US Patent References:
2198546Ear protecting device
2570675Ear protector
2700162Ear protector