YS

Yoichi Sekikawa

Overall (All Time): #4,031,981 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4440147 Room-heating stove with a retractable fire-prevention spacer Kazunori Amano, Bunji Aizawa, Akio Ibe 1984-04-03