Woltermann; Erich H.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Woltermann; Erich H..The latest application filed is for "filter for making portions of coffee or tea".
- Woltermann; Erich H. - 4950 Minden DE
| Patent | Date |
|---|---|
| Filter for making portions of coffee or tea Grant 4,859,337 - Woltermann August 22, 1 | 1989-08-22 |
| Machine for preparing hot beverages, with a metered withdrawal of liquid Grant 4,662,271 - Woltermann May 5, 1 | 1987-05-05 |
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