Hardy Sonnenberg

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Puslinch, CA

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Patents Grantslast 30 patents

Information Patent Grant
Thermal transfer printing elements with mesomorphic inks
- Patent number 5,072,234
- Issue date Dec 10, 1991
- Xerox Corporation
- Richard G. Crystal
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Magnetically and electrostatically assisted thermal transfer printi...
- Patent number 5,045,865
- Issue date Sep 3, 1991
- Xerox Corporation
- Richard G. Crystal
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS