YS

Yutaka Sugiyama

NC Nihon Bisoh Co.: 1 patents #1 of 2Top 50%
Overall (1994): #15,150 of 165,921Top 10%
2
Patents 1994

Issued Patents 1994

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5332195 Rope traction device 1994-07-26
5299780 Rope traction device 1994-04-05