Penza; George Gregory
Patent Applications and Registrations
Patent applications and USPTO patent grants for Penza; George Gregory.The latest application filed is for "railroad worker warning system for train conductors".
- Penza; George Gregory - Huntington NY
| Patent | Date |
|---|---|
| Railroad worker warning system for train conductors Grant 6,145,792 - Penza , et al. November 14, 2 | 2000-11-14 |
| Tactile and audible warning system for railroad workers Grant 5,727,758 - Penza , et al. March 17, 1 | 1998-03-17 |
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