Guoliang AN

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Adjusting mechanism of box and LED box assembly
- Patent number 11,725,680
- Issue date Aug 15, 2023
- LEYARD OPTOELECTRONIC CO., LTD.
- Guoliang An
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents

Information Patent Application
Plug-in Connection Device of LED Display Device, and LED Display De...
- Publication number 20230387370
- Publication date Nov 30, 2023
- LEYARD OPTOELECTRONIC CO., LTD.
- Linhua CAO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ADJUSTING MECHANISM OF BOX AND LED BOX ASSEMBLY
- Publication number 20220341446
- Publication date Oct 27, 2022
- LEYARD OPTOELECTRONIC CO., LTD.
- Guoliang AN
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS