Yuan Lin

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Patents Grantslast 30 patents

Information Patent Grant
Thin emergency exit indication and warning device
- Patent number 7,652,590
- Issue date Jan 26, 2010
- Yuan Lin
- G08 - SIGNALLING

Patents Applicationslast 30 patents

Information Patent Application
Thin emergency exit indication and warning device
- Publication number 20080164981
- Publication date Jul 10, 2008
- Yuan Lin
- G08 - SIGNALLING
Information Patent Application
Advertising sign device
- Publication number 20030019138
- Publication date Jan 30, 2003
- Yuan Lin
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS