Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5604329 | Housing, in particular for an electrical tooth cleaning device, and process for producing it | Peter Hartwein, Georg Spiekermann | 1997-02-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5604329 | Housing, in particular for an electrical tooth cleaning device, and process for producing it | Peter Hartwein, Georg Spiekermann | 1997-02-18 |