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GB195657A
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Improvements in relays for the reception of signals, vibrations and the like
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GB184239A
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Electrical means for operating or controlling mechanisms by sound
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GB183279A
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Improvements in and relating to sound-boxes for gramophones and the like instruments
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GB166321A
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Improvements in or relating to gramophones and the like
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GB141269A
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Improvements in and relating to wireless telegraphy and the like
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GB304378A
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Method and means of recording the time of passage, the character, and other particulars of vessels at sea
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GB159517A
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Improvements in and relating to hydrophones and the like
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GB304176A
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Improvements in methods of obtaining direction of subaqueous sounds
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GB304173A
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Apparatus for submarine acoustic detection
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GB304084A
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Method of and means for controlling the movements of ships or any other mechanisms by wireless telegraphy
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GB304036A
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Improvements in and relating to submarine sound signalling or indicating apparatus
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GB191323340A
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Improved Means for Operating Gas Valves from a Distance.
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