Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6425160 | Intermittent driving apparatus for rotary window cleaner | — | 2002-07-30 |
| 6263537 | Drive controlling apparatus for rotary window cleaner | — | 2001-07-24 |
| 6178587 | Rotary window cleaner | — | 2001-01-30 |
| 5210900 | Rotary window cleaner | — | 1993-05-18 |
| 4773117 | Rotary window cleaner | — | 1988-09-27 |
| 4701972 | Rotary window cleaner | — | 1987-10-27 |