Shengchun Yuan

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Xi'an, CN

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Patents Grantslast 30 patents

Information Patent Grant
LED display unit board, LED display screen control card and LED dis...
- Patent number 9,953,552
- Issue date Apr 24, 2018
- XI'AN NOVASTAR TECH CO., LTD.
- Shengchun Yuan
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents

Information Patent Application
LED DISPLAY UNIT BOARD, LED DISPLAY SCREEN CONTROL CARD AND LED DIS...
- Publication number 20160275835
- Publication date Sep 22, 2016
- XI'AN NOVASTAR TECH CO., LTD.
- Shengchun Yuan
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS