TO

Toshikatsu Okao

HZ Hitachi Zosen: 1 patents #216 of 531Top 45%
Overall (All Time): #3,868,624 of 4,157,543Top 95%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4987949 Protective cover for surface of molten steel used in continuous casting apparatus Haruo Sakaguchi, Shiromitsu Iwatani 1991-01-29