Stephen Gryglas

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Long Grove, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Portable opaque projector
- Patent number 4,721,380
- Issue date Jan 26, 1988
- Constantin Systems, Inc.
- Stephen Gryglas
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Thermal management system for an episcopic image projector
- Patent number 4,682,868
- Issue date Jul 28, 1987
- Constantin Systems, Inc.
- Emile J. Constantin
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY