Yun Long Li

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NanPanQiao Village, CN

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Patents Grantslast 30 patents

Information Patent Grant
Ring binder mechanism
- Patent number 10,369,833
- Issue date Aug 6, 2019
- World Wide Stationery Mfg. Co., Ltd.
- Ming Hua Huang
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Ring binder mechanism having dual time buffer actuator
- Patent number 9,033,608
- Issue date May 19, 2015
- World Wide Stationery Mfg. Co., Ltd.
- Ming Hua Huang
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER

Patents Applicationslast 30 patents

Information Patent Application
RING BINDER MECHANISM
- Publication number 20150231914
- Publication date Aug 20, 2015
- World Wide Stationery Mfg. Co., Ltd.
- Ming Hua Huang
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Application
RING BINDER MECHANISM HAVING DUAL TIME BUFFER ACTUATOR
- Publication number 20110170942
- Publication date Jul 14, 2011
- World Wide Stationery Mfg. Co., Ltd.
- Ming Hua Huang
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER