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ES118708A1
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Improvements in signaling devices for use in maritime and air navigation.
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ES107845A1
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An improvement in the devices to determine distances by wireless means.
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CA165646A
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Signal
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US1218225A
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Signaling apparatus.
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GB191315700A
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Improvements in Signalling Apparatus.
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CA136157A
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Submarine signal
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GB190922847A
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Apparatus for Submarine Signalling.
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GB190716301A
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A Method of Electric Lighting for Light Houses Beacons or Buoys.
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GB190705916A
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Apparatus for Lighting Lighthouses, Beacons Buoys and the like
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GB190608576A
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A New Form of Croquet Mallet
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GB190105707A
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Improvements in Armour by Making it of a Grooved Form.
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GB190022639A
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Improvements on Croquet Mallets.
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GB189812803A
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Means for the Disposal of Waste Liquid Products from Distilleries or other Works.
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