David K. Boyd

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San Antonio, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Electronic test answer record image quality improvement system and...
- Patent number 7,020,435
- Issue date Mar 28, 2006
- Harcourt Assessment, Inc.
- Scott Moulthrop
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents

Information Patent Application
Electronic test answer record image quality improvement system and...
- Publication number 20040253573
- Publication date Dec 16, 2004
- The Psychological Corporation
- Scott Moulthrop
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS