Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5687481 | Shaving apparatus with electrically adjustable cutting unit | Jan de Boer, Andries T. Reeder, Albertus J. C. Van Der Borst, Pieter De Pooter | 1997-11-18 |
| 5671535 | Shaving apparatus with controllable motor speed | Albertus J. C. Van Der Borst, Jan Tiesinga, Ate K. Damstra | 1997-09-30 |