Linhua CAO

Follow

Person

Beijing, CN

People

Patents Applicationslast 30 patents

Information Patent Application
Plugging Mechanism of LED Display Apparatus, and LED Display Apparatus
- Publication number 20230411876
- Publication date Dec 21, 2023
- LEYARD OPTOELECTRONIC CO., LTD.
- Linhua CAO
- H01 - BASIC ELECTRIC ELEMENTS
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
Plug-in Connection Assembly of LED Display Device, LED Box Assembly...
- Publication number 20230246406
- Publication date Aug 3, 2023
- LEYARD OPTOELECTRONIC CO., LTD.
- Linhua CAO
- H01 - BASIC ELECTRIC ELEMENTS