Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4462535 | Apparatus and process for manufacture of tunnel tubes | Edward Johnston, Morton Jacobs, Melvin E. Miller | 1984-07-31 |
| 4454978 | Process for improved manufacture of shells for tunnel tubes | Joseph J. Schneider | 1984-06-19 |
| 4422526 | Access tower for manufacture of tunnel tubes | — | 1983-12-27 |
| 4418561 | Apparatus for manufacture of tunnel tubes | Edward Johnston, Morton Jacobs, Melvin E. Miller | 1983-12-06 |
| 4406150 | Apparatus and process for improved manufacture of shells for tunnel tubes | Joseph J. Schneider | 1983-09-27 |