Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4847964 | Method of producing a crown for an articulated piston | Marshal Adams | 1989-07-18 |
JL
Jerry M. Lechner
Overall (1989): #97,781 of 140,708Top 70%
1
Patents 1989