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CA146665A
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Bobbin for music sheet rollers
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GB191125347A
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Improvements in and relating to Piano Playing Mechanism and the like.
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GB191125348A
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Improvements in and relating to Cabinet Playing Mechanism for Pianos and the like.
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GB191123728A
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Improvements in and relating to Bobbins for Holding Perforated Music Sheets for use with Piano Playing Mechanism and the like.
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GB191116407A
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Improvements in and relating to Piano Playing Mechanism and the like.
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GB191107885A
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Improvements in and relating to Coin Freed Gas Meters and the like.
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GB191028971A
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Improvements in and relating to Piano Playing Devices and the like.
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US1046369A
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Piano-playing mechanism and the like.
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US1010567A
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Piano-playing mechanism and the like.
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US1000359A
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Piano-playing mechanism.
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US1043792A
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Piano-playing mechanism and the like.
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US1005793A
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Piano-playing mechanism.
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GB190926003A
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Improvements in and relating to Vacuum Piano Players and the like.
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GB190909622A
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Improvements in and relating to Piano Playing Mechanism and the like.
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GB190906402A
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Improvements in and relating to Piano Playing Mechanism and the like.
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GB190905921A
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Improvements in and relating to Piano Playing Mechanism and the like.
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GB190901808A
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Improvements in and relating to Piano Playing Mechanism and the like.
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GB190901439A
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Improvements in and relating to Piano Playing Mechanism and the like.
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GB190804962A
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Improvements in and relating to Electric Controllers or Switches
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GB190706925A
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Improvements in and relating to Electric Controllers or Switches
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