YO

Yotaro Ono

NC Nippon Kokan Co.: 1 patents #290 of 735Top 40%
Overall (All Time): #3,943,721 of 4,157,543Top 95%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4887800 Tuyere of blast furnace Hirohisa Hotta, Masahiro Matsuura 1989-12-19