David J. McEwen

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Palmyra, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Copier/printer employing a roll media feed apparatus and dual funct...
- Patent number 5,237,378
- Issue date Aug 17, 1993
- Xerox Corporation
- David J. McEwen
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Corona device having a beryllium copper screen
- Patent number 4,792,680
- Issue date Dec 20, 1988
- Xerox Corporation
- Joseph H. Lang
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY