Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5655247 | Window cleaning apparatus | Charles Lee Allen, Richard Pawson, Peter E. Johnson | 1997-08-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5655247 | Window cleaning apparatus | Charles Lee Allen, Richard Pawson, Peter E. Johnson | 1997-08-12 |