Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4694666 | Shackle mechanisms | Ronald S. Bellingham | 1987-09-22 |
| 4534191 | Security lock for sliding doors | John A. Rogers | 1985-08-13 |
| 4506530 | Key-operated lock | William Kirk Robinson | 1985-03-26 |
| 4182145 | Key-operated locks | Arthur D. Tippin | 1980-01-08 |