Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5347678 | Head assembly for a vacuum cleaning apparatus having dual-individually floating heads | William H. Williams | 1994-09-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5347678 | Head assembly for a vacuum cleaning apparatus having dual-individually floating heads | William H. Williams | 1994-09-20 |