Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4569648 | Self-cleaning rotating drum | Emil Riederer, Karl-Ludwig Zahn | 1986-02-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4569648 | Self-cleaning rotating drum | Emil Riederer, Karl-Ludwig Zahn | 1986-02-11 |