Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4664684 | Air filter unit | Michael Pack, Sonja H. Holzhausen | 1987-05-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4664684 | Air filter unit | Michael Pack, Sonja H. Holzhausen | 1987-05-12 |