Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4632135 | Hair-grooming means | Gerard J. Lenting | 1986-12-30 |
RS
Roelof H. Sytsma
Overall (All Time): #4,007,452 of 4,157,543Top 100%
1
Patents All Time