TO

Tsutomu Ohya

TC Tokyo Gas Co.: 1 patents #2 of 20Top 10%
Overall (1989): #137,219 of 140,708Top 100%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4839790 Gas accident preventive unit Tatsuo Fujimoto 1989-06-13