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Chiayi City, TW
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last 30 patents
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Patent Grant
Handle-returning device for a cylinder lock assembly
Patent number
8,746,760
Issue date
Jun 10, 2014
Tong Lung Metal Industry Co., Ltd.
Po-Yang Chen
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Patents Applications
last 30 patents
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Patent Application
HANDLE-RETURNING DEVICE FOR A CYLINDER LOCK ASSEMBLY
Publication number
20120235429
Publication date
Sep 20, 2012
TONG LUNG METAL INDUSTRY CO., LTD.
Po-Yang CHEN
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES