GB121494A
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Improvements in and relating to Apparatus for Controlling the Fire of Naval Guns.
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GB115964A
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Improvements in Pressure Gauges for use with Apparatus of the Pitot Tube Type for Indicating the Speed of Ships.
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US1239978A
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Apparatus for indicating the speed of ships.
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GB191321241A
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Improvements in Apparatus for Indicating Speed and Registering Distance in connection with Ships.
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GB191229187A
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Improvements in Apparatus for Indicating the Speed of Ships.
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US1080494A
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Automatic speed indicating and registering device.
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US1052387A
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Apparatus for indicating the speed of ships.
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US1040047A
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Ammunition-hoist.
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US997159A
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Motor.
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US988832A
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Apparatus for indicating the speed of ships.
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US955008A
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Apparatus for indicating the speed of ships.
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CA242411A
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Gauge for tank
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