Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4365913 | Method and device for building in the ground vertical walled structures starting from a subterranean conduit | — | 1982-12-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4365913 | Method and device for building in the ground vertical walled structures starting from a subterranean conduit | — | 1982-12-28 |