Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880539 | Filter for filtering solids out of a liquid having a doctor blade wiping means | John Crawford | 1989-11-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880539 | Filter for filtering solids out of a liquid having a doctor blade wiping means | John Crawford | 1989-11-14 |