MC

Mingquan Cai

SC Shandong Weida Machinery Co.: 1 patents #9 of 11Top 85%
📍 Wendeng District, CN: #4 of 9 inventorsTop 45%
Overall (All Time): #2,159,792 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7249770 Locking drill chuck Guimo Yang 2007-07-31
6247705 Manual tightened chuck Guimo Yang, Shengzhi Yang, Lianhai Long, Kangiun Sun 2001-06-19