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Taipei City, TW
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Patents Grants
last 30 patents
Information
Patent Grant
Perpetual calendar clock
Patent number
7,609,589
Issue date
Oct 27, 2009
Kuei-Wen Sheu
G04 - HOROLOGY
Information
Patent Grant
Clock-driving device combined with a conventional core
Patent number
6,898,154
Issue date
May 24, 2005
Kuei-Wen Sheu
G04 - HOROLOGY
Patents Applications
last 30 patents
Information
Patent Application
Structure Improvement of Digital Perpetual Clock
Publication number
20190213920
Publication date
Jul 11, 2019
Kuei-Wen Sheu
G04 - HOROLOGY
Information
Patent Application
CLOCK-DRIVING DEVICE COMBINED WITH A CONVENTIONAL CORE
Publication number
20050111305
Publication date
May 26, 2005
Kuei-Wen Sheu
G04 - HOROLOGY