GB100037A
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Improvements in or relating to Expression Devices for Automatic Musical Instruments.
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GB102989A
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Improvements in or relating to Phonographs and like Machines.
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GB103950A
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Improvements in or relating to Phonographs and like Machines.
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GB103982A
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Improvements in or relating to Sound Control Valves for Talking Machines, Phonographs or the like.
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GB103981A
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Improvements in or relating to the Sound Control Valves of Talking Machines, Phonographs or the like.
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CA193332A
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Musical instrument
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GB190902385A
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Improvements in Adjustable Tracker Boards for Automatic Musical Instruments.
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GB190902378A
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Improvements in Adjustable Tracker Boards for Automatic Musical Instruments.
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GB190825942A
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Improvements in Pneumatic Playing Attachments for Musical Instruments.
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GB190208765A
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Improvements in Air Pressure Regulators Chiefly Designed for Use in connection with Pneumatic Actions for Musical Instruments.
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CA208098A
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Phonograph
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