Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4836146 | Controlling rapping cycle | Egon L. Doering, Clifford C. Segerstrom, Jacob H. Stil, Gerd Harenslak, Matheus M. van Kessel | 1989-06-06 |
PR
Paul F. Russell
Overall (1989): #70,542 of 140,708Top 55%
1
Patents 1989