Hallmann; Hermann
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hallmann; Hermann.The latest application filed is for "magnetically-operated locking and control device".
- Hallmann; Hermann - 2 Hamburg 76 DT
- Hallmann; Hermann - Ruppichteroth DT
- Hallmann; Hermann - Broleek-Derscheid DT
| Patent | Date |
|---|---|
| Magnetically-operated Locking And Control Device Grant 3,797,288 - Hallmann March 19, 1 | 1974-03-19 |
| Security Locks Grant 3,782,147 - Hallmann January 1, 1 | 1974-01-01 |
| Magnetically Operable Blocking And Control Device Grant 3,681,727 - Hallmann August 1, 1 | 1972-08-01 |
| Magnetic Lock Grant 3,584,484 - Hallmann , et al. June 15, 1 | 1971-06-15 |
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