TO

Tsutomu Ohya

TC Tokyo Gas Co.: 1 patents #144 of 412Top 35%
Overall (All Time): #3,930,333 of 4,157,543Top 95%
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Showing 1–1 of 1 patents

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