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Ryuji Watanabe

HI Hitachi: 1 patents #311 of 1,214Top 30%
Overall (1982): #32,314 of 81,411Top 40%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4347413 Electrodes of vacuum circuit breaker Keiichi Kuniya 1982-08-31