Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4311417 | Mine roof support | Lewis R. B. Bower, Arthur Scarfe | 1982-01-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4311417 | Mine roof support | Lewis R. B. Bower, Arthur Scarfe | 1982-01-19 |