Inventor

GUO JIANJIN

CN2 patents

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

QINGDAO D&D ELECTRO MECHANICAL TECHNOLOGIES CO LTD

1 patent

USD523717SJun 27, 2006

Sharpener

QINGDAO D&D ELECTRO MECHANICAL TECHNOLOGIES CO LTD10 citations67

QINGDAO DAYMASTER HARDWARE & T

1 patent

US6945741B2Sep 20, 2005

System of laser positioning of an aperture processing machine

QINGDAO DAYMASTER HARDWARE & T5 citations56