Title:
Ear defender
United States Patent 2437490
US Patent References:
/0302738.html
- - 0302738

/0931768.html
- - 0931768

/1016877.html
- - 1016877

Ear stopper
- - 2246737


Inventors:
Watson, Norman A.
Veneklasen, Paul S.
Leonard, Robert W.
Gales, Robert S.
Publication Date:
03/09/1948
View Patent Images:
Download PDF 2437490 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
Watson, Norman A.
Veneklasen, Paul S.
Leonard, Robert W.
Gales, Robert S.
Primary Class:
128/867
International Classes:
A61F11/08; A61F11/00
Foreign References:
NL6312C