Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6009899 | Variable orifice dual gate valve | — | 2000-01-04 |
| 5083372 | Method and apparatus for aligning and clamping a series of tubes in parallel | Lawrence G. Shekell | 1992-01-28 |