David A. Canton

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Romsey, GB

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Patents Grantslast 30 patents

Information Patent Grant
Display apparatus with mixed alphanumeric and graphic image
- Patent number 4,686,521
- Issue date Aug 11, 1987
- International Business Machines Corporation
- Paul A. Beaven
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Data display apparatus with character refresh buffer and row buffers
- Patent number 4,649,379
- Issue date Mar 10, 1987
- International Business Machines Corp.
- David A. Canton
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS