John H. Keightley

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Richmond, CA

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Patents Grantslast 30 patents

Information Patent Grant
Slide projector
- Patent number 4,974,959
- Issue date Dec 4, 1990
- Production Arts Lighting Inc.
- John H. Keightley
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Film processing apparatus including a vacuum pickup head for a film...
- Patent number 4,556,306
- Issue date Dec 3, 1985
- Polaroid Corporation
- Duncan C. Sorli
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY