Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5327609 | Mopsweeping apparatus with continuous action | Ulrk F. Bierma | 1994-07-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5327609 | Mopsweeping apparatus with continuous action | Ulrk F. Bierma | 1994-07-12 |