Title:
Earplug
United States Patent 3110356
US Patent References:
Ear defender
- - 2437490

Adjustable earpiece for receivers
- - 2529562

Ear plug
- - 2876767

Earpiece
- - 2934160


Inventors:
Mendelson, Emanuel S.
Publication Date:
11/12/1963
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Assignee:
Mendelson, Emanuel S.
Primary Class:
181/130
Other Classes:
128/865
International Classes:
A61F11/08; A61F11/00