Hughes; Lawrence R.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hughes; Lawrence R..The latest application filed is for "telephone control system including stored blocked and allowed telephone numbers".
- Hughes; Lawrence R. - Lauderdale Lakes FL
| Patent | Date |
|---|---|
| Telephone control system including stored blocked and allowed telephone numbers Grant 4,993,062 - Dula , et al. February 12, 1 | 1991-02-12 |
| Computer telephone access security processor Grant 4,604,499 - Hughes August 5, 1 | 1986-08-05 |
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