US1018982A
|
|
Apparatus for automatically recording music.
|
GB191121594A
|
|
Improvements in Apparatus for Recording Music.
|
US1062249A
|
|
Apparatus for automatically operating piano-pedals.
|
US1058329A
|
|
Automatic keyboard-player.
|
US1045318A
|
|
Automatic keyboard-player.
|
GB191002910A
|
|
Improvements in Apparatus for Reproducing Music in Keyed Musical Instruments.
|
GB191002418A
|
|
Improvements in Apparatus for Recording and Reproducing the Pedal Movements in Keyed Musical Instruments.
|
GB190907949A
|
|
Improvements in Apparatus for Recording and Reproducing Music Produced on Keyed Musical Instruments.
|
US1046487A
|
|
Apparatus for recording and reproducing music.
|
US675967A
|
|
Apparatus for grinding and polishing.
|