Bell Telephone Labortories, Incorporated
Patent Applications and Registrations
Patent applications and USPTO patent grants for Bell Telephone Labortories, Incorporated.The latest application filed is for "multifrequency tone receiver".
- Bell Telephone Labortories, Incorporated - Murray Hill NJ
| Patent | Date |
|---|---|
| Multifrequency Tone Receiver Grant 3,780,230 - Bowen , et al. December 18, 1 | 1973-12-18 |
| Encoding Of Read Only Memory By Laser Vaporization Grant 3,740,523 - Cohen , et al. June 19, 1 | 1973-06-19 |
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