IP Library › Granted Patent US 3,934,100
Granted Patent Utility
US 3,934,100 · App. 05/462,814

Acoustic coupler for use with auditory equipment

Inventor: Mas Harada
Patented Case View Patent ↗
Granted: Jan 20, 1976 Filed: Apr 22, 1974
Inventor
Mas Harada
Assignee (at issue)
The Seeburg Corporation

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Quick Facts
Patent No.
US 3,934,100
App. No.
05/462,814
Filed
1974-04-22
Granted
1976-01-20
Kind
A