Inventor

XU GUANHUA

CN2 patents

⚠️ This page may combine multiple inventors who share the name “XU GUANHUA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

XU GUANHUA

1 patent

USD894034SAug 25, 2020

Finger ring size adjuster

XU GUANHUA12 citations71

HE WEN

1 patent

US8869712B2Oct 28, 2014

Precision tilting platform device used for static calibration of seismometers

HE WEN0 citations34