Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5218412 | 180 degree rotating cleaning blade holder | — | 1993-06-08 |
| 5157098 | Cleaning apparatus made of polyurethane | Nero R. Lindblad, Herbert C. Relyea, James F. Smith, Lucille M. Sharf, Edward L. Schlueter, Jr. | 1992-10-20 |