Graham John Clarke

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St. Albans, GB

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Patents Grantslast 30 patents

Information Patent Grant
Control devices
- Patent number 4,144,481
- Issue date Mar 13, 1979
- Marconi Instruments Limited
- Graham J. Clarke
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control devices
- Patent number 4,112,340
- Issue date Sep 5, 1978
- Marconi Instruments Limited
- Graham John Clarke
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER