Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4811484 | Dry-shaving apparatus | Willem Sjouke Wijma, Eduard W. Tietjens, Eppe Bakker | 1989-03-14 |
AH
Albert Hoekstra
Overall (1989): #133,529 of 140,708Top 95%
1
Patents 1989