Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4860222 | Method and apparatus for measuring engine mass air flow | Edward H. Schmidt, Marvin E. Carpenter | 1989-08-22 |
DW
David W. Walters
Overall (1989): #121,378 of 140,708Top 90%
1
Patents 1989