Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5693244 | Apparatus for heating liquids which operates power supply in response to detection of heating element bending | Ronald Wijnsema | 1997-12-02 |
JP
Johan Pragt
Overall (1997): #126,705 of 185,788Top 70%
1
Patents 1997