Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5605578 | Method for cleaning outdoor surface such as vinyl siding | Charles L. Hawes | 1997-02-25 |
| 5595345 | Double barrel sprayer for selective spraying of water or diluted product and use thereof | William Chura, Edward Kozlowski, Lance Liljeqvist, Stephen Geoffrey Jones, Charles L. Hawes | 1997-01-21 |