Zinc-air dry cell holder and hearing aid that uses it
A Standard patent application filed on 30 January 1997 credited to Berkholcs, Gordon
;
Reiter, James J.
Details
Application number :
22539
Application type :
Standard
Application status :
LAPSED
Under opposition :
No
Proceeding type :
Invention title :
Zinc-air dry cell holder and hearing aid that uses it