William E. Hay

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Gilbert, AZ, US

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Patents Grantslast 30 patents

Information Patent Grant
Tubular EL lamp
- Patent number 5,711,594
- Issue date Jan 27, 1998
- Durel Corporation
- William E. Hay
- G01 - MEASURING TESTING
Information Patent Grant
Analog display having electroluminescent pointer
- Patent number 5,697,322
- Issue date Dec 16, 1997
- Durel Corporation
- William E. Hay
- B60 - VEHICLES IN GENERAL