Donald Mayston

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St. Albans, GB

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Patents Grantslast 30 patents

Information Patent Grant
Making of printing plates
- Patent number 4,517,036
- Issue date May 14, 1985
- Protocol Engineering Limited
- John H. Elworthy
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Film punch registration
- Patent number 4,380,946
- Issue date Apr 26, 1983
- Protocol Engineering Limited
- Donald Mayston
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY