Zeyan Ying

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Shenzhen, CN

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Patents Applicationslast 30 patents

Information Patent Application
Loose-leaf binder and process of producing same
- Publication number 20210339549
- Publication date Nov 4, 2021
- ZeYan Ying
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Application
U-shaped binding element, its manufacture method and application
- Publication number 20170165995
- Publication date Jun 15, 2017
- Shenzhen QUPA Office Equipment Co., Ltd
- Zeyan Ying
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER