Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4342713 | Process and device for production of concrete pipe by filling and compaction of fresh concrete in an upright form | — | 1982-08-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4342713 | Process and device for production of concrete pipe by filling and compaction of fresh concrete in an upright form | — | 1982-08-03 |