Gruhl; Hartmut
Patent Applications and Registrations
Patent applications and USPTO patent grants for Gruhl; Hartmut.The latest application filed is for "computer-controlled checking system for parking houses, garages or parking lots".
- Gruhl; Hartmut - Cologne DE
| Patent | Date |
|---|---|
| Computer-controlled checking system for parking houses, garages or parking lots Grant 5,034,739 - Gruhl July 23, 1 | 1991-07-23 |
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