Photegra Corporation

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Emeryville, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Photocathode lighting device, method for manufacturing the same and...
- Patent number 7,944,146
- Issue date May 17, 2011
- Photegra Corporation
- Hyo-Soo Jeong
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS