Title:
Hearing aid ear-piece gasket
United States Patent 2908343
US Patent References:
/0411160.html
- - 0411160
/0702800.html
- - 0702800
/0843362.html
- - 0843362
/0887645.html
- - 0887645
Earpiece with inflatable sealing means
- - 2535258
/0411160.html
- - 0411160
/0702800.html
- - 0702800
/0843362.html
- - 0843362
/0887645.html
- - 0887645
Earpiece with inflatable sealing means
- - 2535258
Inventors:
Fred, Hummert
Publication Date:
10/13/1959
View Patent Images:
Export Citation:
Assignee:
Fred, Hummert
Primary Class:
International Classes:
H04R25/00
US Patent References:
| 2763334 | Ear mold for hearing aids |
Foreign References:
| CH8197A | ||||
| DE327428C |