Hardt; Jean
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hardt; Jean.The latest application filed is for "device for conducting away the exhaust gases from internal combustion engines".
- Hardt; Jean - Benken CH
- Hardt; Jean - Neuhausen am Rheinfall CH
- Hardt; Jean - Fribourg CH
| Patent | Date |
|---|---|
| Device for conducting away the exhaust gases from internal combustion engines Grant 4,446,942 - Hardt , et al. May 8, 1 | 1984-05-08 |
| Metal can with membrane type closure Grant 4,328,905 - Hardt May 11, 1 | 1982-05-11 |
| Relief vent for pressurized cans Grant 4,003,505 - Hardt January 18, 1 | 1977-01-18 |
| Apparatus for capping receptacles Grant 4,000,708 - Hardt January 4, 1 | 1977-01-04 |
| Die For Shaping Metals Grant 3,848,453 - Hardt November 19, 1 | 1974-11-19 |
| Redrawing Apparatus Grant 3,822,576 - Hardt July 9, 1 | 1974-07-09 |
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