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Discharge tube apparatus
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Patent number 4,805,180
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Issue date Feb 14, 1989
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English Electric Valve Company Limited
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Arthur Maitland
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H01 - BASIC ELECTRIC ELEMENTS
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Discharge tubes
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Patent number 4,794,614
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Issue date Dec 27, 1988
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English Electric Valve Company Limited
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Arthur Maitland
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H01 - BASIC ELECTRIC ELEMENTS
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Laser arrangements
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Patent number 4,498,181
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Issue date Feb 5, 1985
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English Electric Valve Company Limited
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Hugh Menown
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H01 - BASIC ELECTRIC ELEMENTS
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Thyratrons
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Patent number 4,429,253
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Issue date Jan 31, 1984
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English Electric Valve Company Limited
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Timothy P. Donaldson
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H01 - BASIC ELECTRIC ELEMENTS
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Thyratrons
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Patent number 4,180,756
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Issue date Dec 25, 1979
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English Electric Valve Company Limited
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Robert J. Wheldon
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H01 - BASIC ELECTRIC ELEMENTS