Membership
Tour
Register
Log in
Tey-Jen Wu
Follow
Person
Taipei, TW
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Switch for four-quarters clock
Patent number
5,808,254
Issue date
Sep 15, 1998
Tey-Jen Wu
H01 - BASIC ELECTRIC ELEMENTS