Issued Patents 2017
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9840821 | Gripper device and hoisting device for a trash rake cleaner, trash rake cleaner and method therefor | Harm Jan Grijpstra | 2017-12-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9840821 | Gripper device and hoisting device for a trash rake cleaner, trash rake cleaner and method therefor | Harm Jan Grijpstra | 2017-12-12 |