Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4601141 | Building structure expansion apparatus | — | 1986-07-22 |
| 4506624 | Trowel for smoothing mortar on the interior of a pipe | — | 1985-03-26 |
| 4457326 | System for providing temporary water service between a water main and one or more locations normally connected to the main | — | 1984-07-03 |
| 4377984 | Connecting assembly for pipe lining equipment | — | 1983-03-29 |
| 4300792 | Pipe assembly | — | 1981-11-17 |