Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889969 | Reduced-spatter pulse arc welding machine for use with a consumable electrode | Naoki Kawai, Tomiaki Hosokawa | 1989-12-26 |
KH
Kouji Hamamoto
Overall (1989): #86,418 of 140,708Top 65%
1
Patents 1989