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Tsunenobu Saeki

SC Shinagawa Refractories Co.: 1 patents #73 of 162Top 50%
Overall (All Time): #3,588,664 of 4,157,543Top 90%
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Patent #TitleCo-InventorsDate
6263897 Slide valve plate and method of making the same Yuji Yoshimura 2001-07-24