David Lewis

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Appleton, WI, US

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Patents Grantslast 30 patents

Information Patent Grant
Thermal paper
- Patent number 7,902,117
- Issue date Mar 8, 2011
- Sharad Mathur
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

Information Patent Application
Thermal paper
- Publication number 20060122059
- Publication date Jun 8, 2006
- Sharad Mathur
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS