US2021126A
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Organ stop action
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US2072844A
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Swell expression engine
|
US1916820A
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Electrically operated valve for organ pipes
|
US1905880A
|
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Combination organ stop action
|
US1879015A
|
|
Tracker mechanism for musical instruments
|
US1901622A
|
|
Combination organ stop action
|
US1901623A
|
|
Combination organ stop mechanism
|
US1899381A
|
|
Organ stop operating mechanism
|
US1770260A
|
|
Swell shutter
|
US1640307A
|
|
Organ stop action
|
US1639324A
|
|
Swell-shutter-controlling mechanism
|
US1456612A
|
|
Combination organ-stop action
|
US1419486A
|
|
Resonator for reed pipes
|
US1379296A
|
|
Bearing
|
US1427997A
|
|
Electropneumatic organ action
|
US1303626A
|
|
Electrically-governed key-operated mechanism.
|
US1335417A
|
|
Electropneumatic organ-action
|
US1277529A
|
|
Pneumatic organ-action.
|
US1197251A
|
|
Pipe-organ.
|
US1279492A
|
|
Combination organ-stop action.
|