Koopman; Karl-Heinz
Patent Applications and Registrations
Patent applications and USPTO patent grants for Koopman; Karl-Heinz.The latest application filed is for "ergonomic arm support for a chair".
- Koopman; Karl-Heinz - Steyerberg DE
| Patent | Date |
|---|---|
| Ergonomic arm support for a chair Grant D371,474 - Koopman July 9, 1 | 1996-07-09 |
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