Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5528921 | Tube bending appartus | — | 1996-06-25 |
| 5108132 | Split spacer for flange fittings | — | 1992-04-28 |
| 4442703 | Pipe testing apparatus | Kenneth Johns | 1984-04-17 |
| 4430887 | Pipe tester with multiple fluid source connections | William M. Roberts | 1984-02-14 |