|
US964955A
|
|
Mechanically-operated piano.
|
|
US944036A
|
|
Piano-case.
|
|
US840303A
|
|
Pneumatically-operated musical instrument.
|
|
US833215A
|
|
Pedal attachment for pneumatic instruments.
|
|
US840302A
|
|
Mechanically-operated piano.
|
|
US802757A
|
|
Front fall for upright pianos.
|
|
US794017A
|
|
Pedal for pianos.
|
|
GB190423293A
|
|
Improvements in Automatic Musical Instruments.
|
|
US773851A
|
|
Pneumatic piano-player.
|
|
US767602A
|
|
Flanging implement.
|
|
GB190116727A
|
|
Improvements in Steam Generators.
|
