Chang-Ren Wu

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Tainan, TW

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Patents Grantslast 30 patents

Information Patent Grant
Door lock permitting easy change in lock core assembly orientation
- Patent number 9,540,848
- Issue date Jan 10, 2017
- I-TEK Metal Mfg. Co., Ltd.
- Chang-Ren Wu
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES