Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4660805 | Device for shutting off a pipe | Otto Heinemann, Heinz-Herbert Schmits | 1987-04-28 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4660805 | Device for shutting off a pipe | Otto Heinemann, Heinz-Herbert Schmits | 1987-04-28 |