Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6817591 | Concrete hose shut-off valve | Gordon Guslick | 2004-11-16 |
| 6766570 | Coupling units connecting tubular members having a hardened inner wall for carrying mechanically abrasive fluid concrete | Robert E. Klemm | 2004-07-27 |
| 6758500 | Flared ends conduit coupling | — | 2004-07-06 |