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GB190714649A
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An Improved Electric Battery.
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GB190207199A
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Improvements in or relating to Igniting Devices for Explosion Engines.
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CA75380A
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Method of using alternating electric currents
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US645774A
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Continuous-current transformer.
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GB189906947A
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Improved Method of and Apparatus for Transforming Continuous Electric Currents into Continuous or Alternating Currents of Different Voltage.
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GB189904158A
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Improvements in Transformers for Continuous Electric Currents.
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GB189813969A
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Improvements in Trembler Interruptors for Electric Currents.
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GB189802428A
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An Improved Electrical Transformer for Currents of High Potential and Variable Frequency.
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