Title:
Earpiece
United States Patent 2934160
Inventors:
Isaac, Touson
Publication Date:
04/26/1960
Export Citation:
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Assignee:
Isaac, Touson
Primary Class:
181/130
Other Classes:
D24/106
International Classes:
A61F11/00; A61F11/00
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US Patent References:
2803308Ear-tip for stethoscope type headset
2785675Ear protecting devices
2535258Earpiece with inflatable sealing means
Foreign References:
GB468604A
GB643927A