Title:
Ear-enveloping cups
United States Patent 2802214


Inventors:
Hanks, Thrift G.
Application Number:
US44365754A
Publication Date:
08/13/1957
Filing Date:
07/15/1954
Assignee:
BOEING CO
Primary Class:
Other Classes:
2/195.7, 2/200.3, 2/423, 128/866
International Classes:
A42B3/16
View Patent Images:
US Patent References:
2570675Ear protector1951-10-09
2468721Earphone socket and noise shield1949-04-26
2324735Composite rubber article and method of producing same1943-07-20
2297874Protective helmet1942-10-06
2132864Bathing cap1938-10-11
1761302Bathing cap1930-06-03
1606878Ear muff1926-11-16
1066511N/A1913-07-08