Inventor

YU JING-BO

CN2 patents

Patents

2 patents

US7804606B2Sep 28, 2010

Portable electronic measuring device and method

HONGFUJIN PREC IND SHENZHEN1 citations41

US7821653B2Oct 26, 2010

Portable electronic measuring device and method

HONGFUJIN PREC IND SHENZHEN0 citations26