Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D274125 | Safety chain lock for a door or similar structure | Robert Allen | 1984-06-05 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D274125 | Safety chain lock for a door or similar structure | Robert Allen | 1984-06-05 |