Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4976285 | Universal self-venting drain valve | John F. Church, Victor R. Oelschlaegel | 1990-12-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4976285 | Universal self-venting drain valve | John F. Church, Victor R. Oelschlaegel | 1990-12-11 |