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US2019056960A1
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Online desktop operating system
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CA91732A
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Fluid turbine
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GB190020942A
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Improvements in Systems of Electric Motor Control
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GB189821759A
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Improvements connected with the Control of Electrically Propelled Trains.
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GB189821550A
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Improvements in Systems of Control for Electric Motors and Railway Trains.
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GB189820276A
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Improvements in Systems of Train Control for Electrically Propelled Vehicles.
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CA55120A
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Electric circuit controller
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CA59403A
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Electric brake
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CA59381A
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Electrical brake
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CA57622A
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Safety appliance for electric cars
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CA55683A
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Electric brake
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CA42112A
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Improvements in method of regulating electrically driven mechanism
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