FR701418A
(en )
1931-03-16
New soundboard to increase the tonal performance of upright, grand and other pianos
FR710231A
(en )
1931-08-20
Chord key of stringed musical instruments
FR648630A
(en )
1928-12-12
Improvements to the soundboards of stringed instruments
GB351890A
(en )
1931-07-02
Improvements in or relating to cases for violins and similar musical instruments
FR597473A
(en )
1925-11-21
Soundboard for grand and upright pianos
FR829284A
(en )
1938-06-17
New arrangement of the sound system, strings-soundboard, valid for several stringed musical instruments
FR646229A
(en )
1928-11-08
Improvements in the construction of musical instruments on soundboards, and in particular pianos
FR659978A
(en )
1929-07-05
Improvements to pianos and other stringed instruments
FR730044A
(en )
1932-08-05
Improvements in the construction of piano mechanics
FR617562A
(en )
1927-02-22
Triple bridge harmony box, applicable to piano soundboards
FR663454A
(en )
1929-08-21
Harmony box applicable to the boxes of striking clocks, pianos and other instruments emitting sounds
FR671054A
(en )
1929-12-09
Octave clef for saxophones or similar instruments
FR614940A
(en )
1926-12-27
Keyboard for pianos and other similar musical instruments
FR817278A
(en )
1937-08-31
New musical typography
FR649167A
(en )
1928-12-19
Improvements to banjos and other stringed instruments
FR692533A
(en )
1930-11-06
Improvements to pianos and other keyboard instruments
FR674508A
(en )
1930-01-29
Lighting device for pianos and other keyboard instruments
FR736779A
(en )
1932-11-28
Improvements to violins, guitars, mandolins and other stringed instruments
FR658413A
(en )
1929-06-04
Damper mechanism for stringed instruments
GB306763A
(en )
1929-02-28
Improvements in or relating to sound boards for pianos and other key instruments
FR735226A
(en )
1932-11-04
Keyboard attached applicable to all kinds of portable or non-portable stringed instruments
FR641672A
(en )
1928-08-08
Improvements to octave keys for saxophones and similar instruments
FR853035A
(en )
1940-03-08
Small-scale string instrument of the grand piano genre
FR564590A
(en )
1924-01-05
Mechanics for mandolins, guitars and other stringed instruments
FR665941A
(en )
1929-09-25
Stringed musical instrument