Praus; Gerd
Patent Applications and Registrations
Patent applications and USPTO patent grants for Praus; Gerd.The latest application filed is for "block-form cleaners for flush toilets".
- Praus; Gerd - Krefeld DE
| Patent | Date |
|---|---|
| Block-form cleaners for flush toilets Grant 5,759,974 - Menke , et al. June 2, 1 | 1998-06-02 |
| Cleaning block for flush toilet tanks Grant 4,820,449 - Menke , et al. April 11, 1 | 1989-04-11 |
| Two-component cleaner and disinfectant tablet Grant 4,683,072 - Holdt , et al. * July 28, 1 | 1987-07-28 |
| Two component cleaner and disinfectant tablet Grant 4,578,207 - Holdt , et al. March 25, 1 | 1986-03-25 |
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