Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4216793 | Shutoff valve | Frank R. Volgstadt, Albert H. Reschke, David P. Passerell | 1980-08-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4216793 | Shutoff valve | Frank R. Volgstadt, Albert H. Reschke, David P. Passerell | 1980-08-12 |