William D. Petty

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Perrysburg, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Film supply and take-up system for motion picture projector
- Patent number 4,169,566
- Issue date Oct 2, 1979
- Eprad Incorporated
- Angelo Boudouris
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Film supply and take-up system for motion picture projector
- Patent number 4,010,910
- Issue date Mar 8, 1977
- Eprad Incorporated
- Angelo Boudouris
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of and apparatus for enhancing discharge state manipulation...
- Patent number 3,993,990
- Issue date Nov 23, 1976
- Owens-Illinois, Inc.
- John W. V. Miller
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS