CH21306A
(en )
1901-06-30
Musical mechanism with exchangeable note discs
CH19317A
(en )
1900-06-30
Mechanical musical mechanism with exchangeable note discs
CH20543A
(en )
1901-02-28
Mechanical musical mechanism with exchangeable note discs
CH21635A
(en )
1901-08-31
Mechanical musical instrument with automatically replaceable note discs
CH16754A
(en )
1899-02-15
Mechanical musical mechanism with exchangeable note discs
CH16824A
(en )
1899-02-15
Mechanical musical mechanism with exchangeable note discs
CH21305A
(en )
1901-06-30
Mechanical musical mechanism
CH22105A
(en )
1901-11-30
Mechanical musical mechanism
CH22845A
(en )
1902-04-15
Mechanical musical mechanism with automatic change of note discs
CH24453A
(en )
1903-01-15
Mechanical musical instrument with automatically replaceable note discs
CH24332A
(en )
1902-12-15
Automatic musical mechanism with exchangeable music drum
CH31182A
(en )
1905-03-15
Mechanical musical mechanism with exchangeable music disc
CH22707A
(en )
1902-03-15
Repeat mechanism
CH20179A
(en )
1900-12-15
Drop disc
CH21791A
(en )
1901-09-30
Mechanical musical mechanism with display device
CH22274A
(en )
1901-12-31
Music notation sheet
CH19316A
(en )
1900-06-30
Mechanical musical mechanism
CH19384A
(en )
1900-06-30
Mechanical musical mechanism
CH18924A
(en )
1900-04-15
Mechanical musical mechanism
CA71457A
(en )
1901-05-21
Piano action
GB190001239A
(en )
1900-12-22
Improvements in Stringed Musical Instruments.
CH21115A
(en )
1901-05-31
Advanced music box
CH16024A
(en )
1898-09-15
Mechanical musical mechanism with exchangeable cylinder
CH19780A
(en )
1900-11-15
Double keyboard for pianos
CA68834A
(en )
1900-09-27
Piano