GB191502060A
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Means for and Methods of Changing the Frequency of Alternating Electric Currents.
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CA173655A
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Method of changing frequency of alternating currents
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GB191315729A
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Means for and Methods of Changing the Frequency of Alternating Electric Currents.
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CA162959A
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Electric cut-out
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GB191216830A
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Improvements in Means for and Methods of Clearing Faults on Alternating Current Systems.
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GB191202630A
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Means for and Methods of Charging and Discharging Electric Accumulators or Secondary Batteries.
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GB191127560A
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Method of and Means for Clearing Faults on Alternating Current High Tension Systems.
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GB191108853A
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Improvements in and relating to Means for and Methods of Changing the Frequency of Alternating Electric Currents.
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US1164320A
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Circuit-breaker.
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GB191027312A
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Improvements in Methods of Clearing Faults from High Tension Alternating Current Distributing Systems.
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GB191024611A
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Automatic Instantaneous Switches for Alternating and Direct Current Circuits.
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GB191020906A
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Method of, and Means for, Discharging Electric Accumulators or Secondary Batteries.
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GB191007141A
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Automatic Instantaneous Switches for Alternating and Direct Current Circuits.
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GB190922518A
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Improvements in Methods of Charging and Discharging Electric Accumulators or Secondary Batteries.
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GB190920867A
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Improvements in Methods of Obtaining Continuous Currents from Alternating Current Circuits.
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GB190918636A
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Improvements in Arrangements for Charging and Discharging Accumulators or Secondary Batteries.
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GB190914212A
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Improvements in Methods of Charging and Discharging Secondary Batteries or Electric Accumulators on Three-wire Systems.
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GB190902147A
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Improvements in Electric Accumulator Substations Fed from Alternating Current Systems.
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GB190824643A
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Improvements in Arrangements for Charging and Discharging Electric Accumulators.
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GB190822044A
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Improvements in Arrangements for Storing and Distributing Alternating Currents of Electricity.
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