Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6270658 | Drinking water supply apparatus | — | 2001-08-07 |
| 5651663 | Safety device for a pump for installation in lines for liquids, especially water, and a device for delivering liquid | — | 1997-07-29 |
| 4795199 | Clamping sleeve for pipes | Manfred Gehring | 1989-01-03 |
| 4715626 | Clamping sleeve with a clamping screw | Manfred Gehring | 1987-12-29 |