Membership
Tour
Register
Log in
Xiangwei Chu
Follow
Person
Hong Kong, HK
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Reservoir type writing pen having micro-porous straight-liquid stru...
Patent number
9,694,620
Issue date
Jul 4, 2017
Tung Yik International Ltd.
Xiangwei Chu
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Patents Applications
last 30 patents
Information
Patent Application
RESERVOIR TYPE WRITING PEN HAVING MICRO-POROUS STRAIGHT-LIQUID STRU...
Publication number
20170001465
Publication date
Jan 5, 2017
TUNG YIK INTERNATIONAL LTD.
Xiangwei Chu
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES