Title:
Loudspeaker systems
United States Patent 3393764
US Patent References:
System for the reproduction of sound
- - 2114680
Cubic loud-speaker cabinet
- - 2544742
Sound reproducing systems
- - 2768702
Sound reproducing system
- - 3054856
Loud speaker enclosures
- - 3074503
System for the reproduction of sound
- - 2114680
Cubic loud-speaker cabinet
- - 2544742
Sound reproducing systems
- - 2768702
Sound reproducing system
- - 3054856
Loud speaker enclosures
- - 3074503
Inventors:
Schafer, Curtiss R.
Publication Date:
07/23/1968
View Patent Images:
Export Citation:
Primary Class:
Other Classes:
181/147, 381/182
International Classes:
H04B1/22; H04R1/22
US Patent References:
| 3136382 | Acoustic transducer |
Foreign References:
| DE975222C | ||||
| DE1075666B | ||||
| FR1196858A |