Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4311417 | Mine roof support | Arthur Scarfe, John Cambridge Smith | 1982-01-19 |
| 4310268 | Mining equipment | Arthur Scarfe | 1982-01-12 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4311417 | Mine roof support | Arthur Scarfe, John Cambridge Smith | 1982-01-19 |
| 4310268 | Mining equipment | Arthur Scarfe | 1982-01-12 |