Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4534192 | Security door | Harry F. Harshbarger, Patrick J. Young | 1985-08-13 |
| 4478444 | Door bolt immobilizing device | Harry F. Harshbarger | 1984-10-23 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4534192 | Security door | Harry F. Harshbarger, Patrick J. Young | 1985-08-13 |
| 4478444 | Door bolt immobilizing device | Harry F. Harshbarger | 1984-10-23 |