Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4461505 | Suspended load rotating lifter | — | 1984-07-24 |
| 4407609 | Apparatus and method for providing negative buoyancy for tunnel forms | Henry P. Cerutti, Robert A. Cannon | 1983-10-04 |