Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4787956 | Friction welding apparatus | David Perry, Edward J. Schelmbauer | 1988-11-29 |
JH
John A. Hoefer
Overall (All Time): #3,963,814 of 4,157,543Top 100%
1
Patents All Time