Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4583441 | Butterfly valve for accordions and its dynamic connection with the key | — | 1986-04-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4583441 | Butterfly valve for accordions and its dynamic connection with the key | — | 1986-04-22 |