Dwin R. Craig

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Gaithersburg, MD, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for producing photographic records of transpar...
- Patent number 4,521,104
- Issue date Jun 4, 1985
- Dwin R. Craig
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Detection of flaws in a moving web of transparent material
- Patent number 4,038,554
- Issue date Jul 26, 1977
- Columbia Research Corporation
- Dwin R. Craig
- G01 - MEASURING TESTING
Information Patent Grant
Automatic focussing attachment for photographic enlargers
- Patent number 3,989,373
- Issue date Nov 2, 1976
- Dwin R. Craig
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Intra packet film processing method and apparatus
- Patent number 3,950,172
- Issue date Apr 13, 1976
- Insite Corporation
- Dwin R. Craig
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY