Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4364138 | Automatic floor cleaning machine with removable drive carriage | Steven J. A. Waldhauser | 1982-12-21 |
| 4339841 | Squeegee support assembly for automatic floor cleaning machines | Steven J. A. Waldhauser | 1982-07-20 |