Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4363120 | Record player speed changing mechanism | Michel H. F. Decoster | 1982-12-07 |
HG
Henri M. Grobben
Overall (1982): #59,954 of 81,411Top 75%
1
Patents 1982