Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4445304 | Method and apparatus for supporting a vertical cylinder of wet cement surrounding a vertical pipe passing through a horizontal concrete slab | — | 1984-05-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4445304 | Method and apparatus for supporting a vertical cylinder of wet cement surrounding a vertical pipe passing through a horizontal concrete slab | — | 1984-05-01 |