United States Patent 2734100
US Patent References:
Method of and means for producing musical tones
- - 1967238
Method of and means for producing musical tones
- - 1967239
Electrical device
- - 2144337
Method and apparatus for signal translation
- - 2203353
Secrecy communication system
- - 2402058
Method of and means for producing musical tones
- - 1967238
Method of and means for producing musical tones
- - 1967239
Electrical device
- - 2144337
Method and apparatus for signal translation
- - 2203353
Secrecy communication system
- - 2402058
Publication Date:
02/07/1956
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Primary Class:
Other Classes:
333/20, 984/301, 360/7, 84/DIG.006, 369/4
International Classes:
G10H1/00
US Patent References:
| 2462263 | Reproduction of sound | |||
| 2476349 | Phase or frequency modulation system | |||
| 2511121 | Method of recording information on stationary magnetic material | |||
| 2528709 | Eraser | |||
| 2532803 | Magnetic recording, reproducing, and erasing apparatus | |||
| 2540406 | Magnetic record editing apparatus | |||
| 2546850 | Means for engraving sound tracks on a support and reproducing sounds by scanning said tracks | |||
| 2548011 | Sonic teacher | |||
| 2550775 | Magnetic screw driver | |||
| 2559505 | Art of making duplicate magnetic phonograph records | |||
| 2563647 | System for making continuous sound records |