Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883129 | Bit assembly utilizing carbide insert | Daniel Nelson | 1989-11-28 |
AL
Alan H. Lonn
Overall (1989): #133,307 of 140,708Top 95%
1
Patents 1989