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, Kouji Hamamoto | 1989-12-26 |
TH
Tomiaki Hosokawa
Overall (1989): #49,059 of 140,708Top 35%
1
Patents 1989