Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D302788 | Push button lock module for attachment to a door knob | Thomas K. McGourty | 1989-08-15 |
| 4815871 | Head control apparatus | Thomas K. McGourty | 1989-03-28 |
| 4810014 | Motor driven lock control | Thomas K. McGourty | 1989-03-07 |