GR

Gakusho Ri

Overall (All Time): #2,872,705 of 4,157,543Top 70%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9873183 Manufacturing method of rotary grindstone and rotary grindstone which has been manufactured by the manufacturing method Yoshikazu Yanagiura 2018-01-23