Douglas N. DeFoe

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Escondido, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Optical collimating device employing cholesteric liquid crystal and...
- Patent number 5,408,346
- Issue date Apr 18, 1995
- Kaiser Electro-Optics, Inc.
- Richard G. Trissel
- G02 - OPTICS