Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880536 | Filter assembly of a manifold, mounting ring and filter housing | Robert John Catterfeld, Benjamin Trasen | 1989-11-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880536 | Filter assembly of a manifold, mounting ring and filter housing | Robert John Catterfeld, Benjamin Trasen | 1989-11-14 |