William L. Chapin

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Orange, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Animated ultraviolet display apparatus
- Patent number 4,703,572
- Issue date Nov 3, 1987
- William L. Chapin
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Method and apparatus for animating illuminated signs and displays
- Patent number 4,565,022
- Issue date Jan 21, 1986
- William L. Chapin
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS