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GB191509003A
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Improvements in Miners' Electric Safety Lamps.
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GB191505323A
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Improvements in Miners' Electric Safety Lamps.
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GB191503710A
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Improvements in connection with Frames or Racks for use in Charging Secondary Electric Batteries.
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GB191411011A
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Improvements in Miners' Flame Safety Lamps.
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GB191421968A
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Improvements in Miners' Electric Safety Lamps.
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GB191325210A
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Improvements in Miners' Electric Safety Lamps.
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US1070522A
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Electric safety-lamp.
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GB190919359A
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Improvements in and relating to Electric Safety Lamps for use in Mines or other like Places.
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GB190904017A
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Improvements in Safety Devices for use in connection with Explosives in Coal Mines and the like.
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GB190900525A
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Improved Means for Detecting or Indicating the Presence of Gas in Mines or the like.
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GB190812480A
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Improvements in, and relating to, Puncture-preventing, Non-skidding and like Bands for Pneumatic Tyres.
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GB190719704A
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Improvements in, and relating to, Casings for the Spokes of Vehicle Wheels.
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GB190615951A
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Improved Means for Preventing the Raising of Dust by Motor Road Vehicles & Tram Cars.
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GB190517916A
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Improvements in Miners' Safety Lamps.
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GB190421816A
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An Improved Construction of Portable Under-carriage and Track for Coal-cutting Machines.
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US794248A
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Engine for coal-cutting machines.
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GB190220437A
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Improvements in Coal Cutting Machines.
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GB189909462A
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Improvements in and connected with Miners' Safety Lamps.
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