Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4296953 | Slipping-off preventing pipe joint | Shozo Nagao, Yoshinobu Ohashi, Yuichi Watanabe | 1981-10-27 |
YW
Yoshikazu Wakushima
Overall (All Time): #4,099,279 of 4,157,543Top 100%
1
Patents All Time