Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876430 | Preweld test method | Roman Herschitz, Alexander Bogorad | 1989-10-24 |
RH
Robert N. Harhigh
Overall (All Time): #3,940,604 of 4,157,543Top 95%
1
Patents All Time