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DK17044C
(en)
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Device for Pianos and Other String Instruments for Regulating the Sound.
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FR456051A
(en)
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Advanced training on bowed musical instruments
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DK15226C
(en)
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Transposition device for cross-stringed Pianos, Grand Pianos and the like.
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DK15762C
(en)
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Device for Keyboard Musical Instruments.
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DK14980C
(en)
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Voice recorder for musical instruments.
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|
FR456892A
(en)
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Piano Improvements
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|
GB191205325A
(en)
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Improvements in Bowed Stringed Musical Instruments.
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|
FR418472A
(en)
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Piano violin
|
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DK18476C
(en)
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Sheet music for automatic musical instruments.
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|
FR435842A
(en)
|
|
String instruments with amplified sounds
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|
FR428467A
(en)
|
|
Mechanism for string pianos
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DK13132C
(en)
|
|
Diaphragm for Acoustic and Musical Instruments.
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DK21028C
(en)
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|
Support device for String Instruments.
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DK18385C
(en)
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|
Apparatus for apparatus for mechanical reproduction of music and the like.
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|
FR475448A
(en)
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|
Piano Improvements
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|
FR427661A
(en)
|
|
Mute for violins, cellos and other stringed instruments
|
|
FR475311A
(en)
|
|
Piano Improvements
|
|
FR464723A
(en)
|
|
Piano Improvements
|
|
FR462109A
(en)
|
|
Piano Improvements
|
|
FR462308A
(en)
|
|
Piano Improvements
|
|
DK9196C
(en)
|
|
Music register for automatic musical instruments and device for the production of the same.
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|
DK28462C
(en)
|
|
Clamping screw for string instruments.
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|
FR405452A
(en)
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|
String instrument
|
|
FR482404A
(en)
|
|
Piano Improvements
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|
AT41008B
(en)
|
|
One resp. Adjustment device for the strings of string instruments.
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