Edmund K. Tunstall

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Carlton on Otmoor, GB

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Patents Grantslast 30 patents

Information Patent Grant
Amplifying arrangements
- Patent number 4,820,996
- Issue date Apr 11, 1989
- English Electric Valve Company Limited
- Roy Heppinstall
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Amplifying arrangements including a klystron having a power transfe...
- Patent number 4,733,192
- Issue date Mar 22, 1988
- British Broadcasting Corporation
- Roy Heppinstall
- H03 - BASIC ELECTRONIC CIRCUITRY