GB252536A
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Improvements in electric switches
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GB250741A
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Improvements in plug and socket connectors and adapters used in or with electrical circuits and apparatus
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GB234375A
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Improvements in electric switches
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GB232422A
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Improvements in plug and socket connectors and adapters used in or with electrical circuits and apparatus
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GB194585A
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Improvements in electric switches
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GB197171A
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Improvements in electric switches
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GB181985A
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Improvements in electric switches
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GB179063A
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Improvements in or in connection with electric plug and socket connectors
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GB158771A
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Improvements in or in connection with electrical switches
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GB138246A
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Improvements in or in connection with electrical switches
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