Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4852466 | Floating diaphragm apparatus | Mark Freeman, John L. Koukol, Jr., George E. Sgourakes | 1989-08-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4852466 | Floating diaphragm apparatus | Mark Freeman, John L. Koukol, Jr., George E. Sgourakes | 1989-08-01 |