Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839939 | Security hinge with improved structural integrity with the electrical wires located along the pivot axis of the knuckles | — | 1989-06-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839939 | Security hinge with improved structural integrity with the electrical wires located along the pivot axis of the knuckles | — | 1989-06-20 |