YU

Yosio Ueno

EC Elephant Chain Block Co.: 2 patents #11 of 21Top 55%
Overall (All Time): #2,235,156 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D421172 Hoist body of lever type Toshimasa Mizutani 2000-02-22
5971364 Hoist and traction apparatus Eikiti Kobayasi 1999-10-26