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US905659A
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Air-pressure regulator for pneumatically-operating musical instruments.
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US897383A
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Music-winding roll for perforated music-sheets.
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US927507A
|
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Self-playing musical instrument.
|
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US892033A
|
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Automatic pressure-regulator for pneumatic actions of musical instruments.
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US796270A
|
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Tracker and connection for automatic musical instruments.
|
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US897331A
|
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Mechanical musical instrument.
|
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US793983A
|
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Flap-valve for piano-players.
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US778734A
|
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Tracker-bar.
|
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US776891A
|
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Key-striker for piano-players.
|
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US756755A
|
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Adjustable pedal for mechanical piano-players.
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US741463A
|
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Music-roll for mechanical players.
|
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US915420A
|
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Regulator for mechanical players for musical instruments.
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US764931A
|
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Winding and rewinding mechanism.
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US763058A
|
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Winding and rewinding mechanism.
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US920571A
|
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Adjustable tracker for piano-players.
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CA80799A
|
|
Music making mechanism
|
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US762986A
|
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Tracker-bar for mechanical musical instruments.
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US722196A
|
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Motor for mechanical musical instruments.
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US757889A
|
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Key-striker for piano-players.
|
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US723274A
|
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Key-striker for piano-players.
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