Membership
Tour
Register
Log in
Hsin-Hsi Lan
Follow
Person
Taipei City, TW
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Auxiliary locking device for a door knob
Patent number
5,221,116
Issue date
Jun 22, 1993
Leading Trade Company Limited
Hsin-Hsi Lan
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES