Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5570871 | Device for selectively tensioning and clamping studs mounted on a pressure vessel to permit nuts to be tightened or loosened | — | 1996-11-05 |
| 5452629 | Device for selectively tensioning and clamping studs mounted on a pressure vessel to permit nuts to be tightened or loosened | Siegfried Heiermann | 1995-09-26 |