Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4327249 | Direct current telegraphy systems | — | 1982-04-27 |
GR
Gerrit Rademaker
Overall (1982): #63,067 of 81,411Top 80%
1
Patents 1982