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Tsung-Chung Hung
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Chiayi, TW
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Patents Grants
last 30 patents
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Patent Grant
Lock construction having an electrically activated clutch mechanism...
Patent number
6,622,535
Issue date
Sep 23, 2003
Tung Lung Metal Industry Co., Ltd.
Wei-Lung Chiang
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Patents Applications
last 30 patents
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Patent Application
Lock construction having an electrically activated clutch mechanism...
Publication number
20020053227
Publication date
May 9, 2002
Tung Lung Metal Industry Co., Ltd.
Wei-Lung Chiang
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES