Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4772207 | Kit and method for demonstrating carpet cleaning principles | Ernest W. Middleton, Geoffrey R. Greeley | 1988-09-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4772207 | Kit and method for demonstrating carpet cleaning principles | Ernest W. Middleton, Geoffrey R. Greeley | 1988-09-20 |