Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876783 | Method and apparatus for conversion of doorknob lock sets | Neil P. Campion, Richard P. Novak | 1989-10-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876783 | Method and apparatus for conversion of doorknob lock sets | Neil P. Campion, Richard P. Novak | 1989-10-31 |