Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4262176 | Roller shutter safety device | Wolfgang B. Kapitza, William Henry Steele | 1981-04-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4262176 | Roller shutter safety device | Wolfgang B. Kapitza, William Henry Steele | 1981-04-14 |