Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5323687 | Hydraulic circuit | Siegfried Zenker, Thorkild Christensen | 1994-06-28 |
| 4834012 | Tiller extension hinge | — | 1989-05-30 |
| 4507821 | Plastic handle assembly | — | 1985-04-02 |
| D277646 | Combined covered pail and detachable rim | — | 1985-02-19 |