Donald E. Stewart

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Arcadia, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Composing reducing camera
- Patent number 4,174,174
- Issue date Nov 13, 1979
- Xerox Corporation
- Robert K. Hunter
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Demand publishing royalty accounting system for an electrostatic co...
- Patent number 4,173,408
- Issue date Nov 6, 1979
- Xerox Corporation
- Donald E. Stewart
- G06 - COMPUTING CALCULATING COUNTING