United States Patent 3125181
US Patent References:
System for the reproduction of sound
- - 2114680
Sound reproducing system
- - 2143175
Loud-speaker structure
- - 2602860
Single channel binaural or stereo-phonic sound system
- - 2927963
System for the reproduction of sound
- - 2114680
Sound reproducing system
- - 2143175
Loud-speaker structure
- - 2602860
Single channel binaural or stereo-phonic sound system
- - 2927963
Publication Date:
03/17/1964
View Patent Images:
Export Citation:
Primary Class:
Other Classes:
381/82, 381/386, 381/93, 181/147, 381/387, 381/186
International Classes:
H04R1/40
Foreign References:
| DE575492C | ||||
| GB781637A | ||||
| DE968492C |