Spiess; Hansruedi
Patent Applications and Registrations
Patent applications and USPTO patent grants for Spiess; Hansruedi.The latest application filed is for "locking device for the positive holding of a cover or grate in a frame".
- Spiess; Hansruedi - Delemont CH
- Spiess; Hansruedi - CH-2800 Delemont CH
| Patent | Date |
|---|---|
| Locking device for the positive holding of a cover or grate in a frame Grant 5,071,177 - Spiess , et al. December 10, 1 | 1991-12-10 |
| Covering for a ground opening Grant 5,017,039 - Spiess , et al. May 21, 1 | 1991-05-21 |
| Ground water drain Grant 4,952,094 - Spiess , et al. August 28, 1 | 1990-08-28 |
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