Membership
Tour
Register
Log in
Ho P. Cheng
Follow
Person
Hong Kong, HK
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Ring for a ring binder mechanism
Patent number
D533588
Issue date
Dec 12, 2006
World Wide Stationary Manufacturing Company, Limited
Ho P. Cheng
D19 - Office supplies