Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5611646 | Support prop with integrated pressure limiting valve and nailed pipes | — | 1997-03-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5611646 | Support prop with integrated pressure limiting valve and nailed pipes | — | 1997-03-18 |