|
US1739680A
|
|
Combination player-piano, radio, and phonograph
|
|
GB287310A
|
|
Improved accenting or expression means for player pianos
|
|
US1680385A
|
|
Automatic mechanism for operating drawers of automatic musical instruments
|
|
US1680368A
|
|
Tension regulator
|
|
US1631274A
|
|
Pneumatic-pump construction
|
|
US1668159A
|
|
Mechanism for controlling the dynamics of pneumatically-operated musical instruments
|
|
US1653935A
|
|
Tension-controlling mechanism for musical instruments
|
|
GB219564A
|
|
Improvements in automatic musical instruments
|
|
US1568659A
|
|
Tracking mechanism for music sheets
|
|
US1666602A
|
|
Expression-controlling mechanism for pneumatically-operated musical instruments
|
|
US1638345A
|
|
Pneumatic action for musical instruments
|
|
US1509590A
|
|
Tracking mechanism for music sheets
|
|
US1603342A
|
|
Expression-controlling mechanism for pneumatically-operated musical instruments
|
|
US1527313A
|
|
Action-operating mechanism
|
|
US1468139A
|
|
Switching mechanism for player pianos
|
|
US1564870A
|
|
Manually or mechanically operated piano
|
|
US1525497A
|
|
Expression mechanism for automatic musical instruments
|
|
US1341425A
|
|
Player-piano mechanism
|
|
US1287649A
|
|
Soft-tension-graduating device for musical instruments.
|
|
US1413831A
|
|
Expression device for automatic musical instruments
|
