US888290A
|
|
Music-roll-marking device.
|
US851471A
|
|
Mechanical musical instrument.
|
US851472A
|
|
Pneumatic motor.
|
US844987A
|
|
Automatic playing mechanism for musical instruments.
|
US841383A
|
|
Automatic playing mechanism for musical instruments.
|
US860618A
|
|
Automatic playing mechanism in pianos.
|
US851470A
|
|
Automatic playing mechanism for musical instruments.
|
US875974A
|
|
Rhythm-indicator for mechanical musical instruments.
|
US820080A
|
|
Mechanical musical instrument.
|
US844986A
|
|
Pneumatic tracker-bar.
|
US869678A
|
|
Mechanically-controlled solo-accent device for mechanical musical instruments.
|
US847534A
|
|
Divided pianissimo device.
|
US844985A
|
|
Automatic playing mechanism in pianos.
|
US844984A
|
|
Mechanical musical instrument.
|
US820079A
|
|
Musical instrument.
|