James J. Krusas

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Sturbridge, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Face protective device
- Patent number 4,856,109
- Issue date Aug 15, 1989
- American Optical Corporation
- Raoul O. Desy
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Support structure for protective mask optical insert
- Patent number 4,711,539
- Issue date Dec 8, 1987
- American Optical Corporation
- James J. Krusas
- G02 - OPTICS