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Junji Shirogane

RI Riken: 1 patents #679 of 1,824Top 40%
Overall (All Time): #4,070,111 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4330963 Apparatus for grinding finish of piston rings Masahiko Wada 1982-05-25