Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4848031 | Door control device | Jun Yamagishi, Toshio Yokoo | 1989-07-18 |
HN
Hiromitsu Nishikawa
Ohi Seisakusho Co.: 1 patents #6 of 32Top 20%
Overall (1989): #104,541 of 140,708Top 75%
1
Patents 1989