Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884774 | Cable lead-through device | Peter T. Blaser | 1989-12-05 |
| 4832329 | Device for controlling a pile lifting device and method of operation | Michael Kruger | 1989-05-23 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884774 | Cable lead-through device | Peter T. Blaser | 1989-12-05 |
| 4832329 | Device for controlling a pile lifting device and method of operation | Michael Kruger | 1989-05-23 |