Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4339006 | Method and apparatus for mine roof drilling | Randall W. Ojanen | 1982-07-13 |
| 4327947 | Keeper spring for connecting mining tool to work tool holder | — | 1982-05-04 |
AJ
Arnold B. Bower, Jr.
Overall (1982): #16,161 of 81,411Top 20%
2
Patents 1982