Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4588036 | Continuous, undisturbed sampling by rotational boring in non-plastic granular tills | Louis Dubreuil, Joseph Grumich | 1986-05-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4588036 | Continuous, undisturbed sampling by rotational boring in non-plastic granular tills | Louis Dubreuil, Joseph Grumich | 1986-05-13 |