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GB191311069A
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Improved Means for Operating Direction Switches and Resistance in Electric Motor Driven Controllers.
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GB191227549A
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Improvements in Variable Speed Gearing.
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GB191211500A
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Improved Means for Opening and Closing Gates used in Lifts and in connection therewith.
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GB191126166A
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Improvements in or relating to Friction Clutches.
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GB191021807A
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Improvements in Means for Controlling Variable-speed Reversing and Brake Mechanism.
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GB191021806A
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Improvements in Variable Speed and Reversing Gearing.
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GB190916113A
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Improvements in Combined Friction Clutches and Brakes.
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GB190916114A
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Improvements in the Controlling Mechanism of Automatic Electric Lifts.
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