YO

Yosiaki Okamoto

EC Elephant Chain Block Co.: 4 patents #8 of 21Top 40%
Overall (All Time): #1,276,193 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6224039 Chain block Takasi Uesugi 2001-05-01
D424269 Wheel cover for chain block Tadasu Matusima, Takasi Uesugi 2000-05-02
6032928 Hand operated chain block having improved hand wheel Takasi Uesugi, Eikiti Kobayasi 2000-03-07
6007054 Hand operated chain block having an improved cover Eikiti Kobayasi 1999-12-28