Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4852406 | Method and apparatus for determining the coefficient of internal friction of steel or the like | Charles Brun | 1989-08-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4852406 | Method and apparatus for determining the coefficient of internal friction of steel or the like | Charles Brun | 1989-08-01 |