Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875081 | Electrophotographic device having a.c. biased cleaning member | Joseph G. Schram | 1989-10-17 |
WG
William L. Goffe
Overall (1989): #44,242 of 140,708Top 35%
1
Patents 1989