Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4421969 | Method for fabricating open web steel joists | — | 1983-12-20 |
| 4408115 | Electrical resistance welding method and apparatus for same; and improved apparatus for testing welds | — | 1983-10-04 |
| 4395615 | Apparatus for welding metal trusses | — | 1983-07-26 |
| 4380174 | Apparatus for shear testing welds | — | 1983-04-19 |