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1905-08-15
Pneumatic control mechanism for keyboard musical instruments
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Keyboard mechanism for stringed musical instruments
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1913-05-19
Electromagnetic control for keyboard musical instruments
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1904-09-20
Recording device for keyboard musical instruments
FR350864A
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1905-06-28
Keyboard for musical instruments with keys
FR340477A
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1904-07-07
Keyboard Musical Instrument Improvements
FR347833A
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1905-03-24
Auxiliary music holder for high keyboard instruments
CH30339A
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1904-11-30
Pneumatic mechanism for pressing the keys of keyboard musical instruments
CA90579A
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1904-12-20
Keyboard for musical instruments
FR322357A
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1903-02-03
Piano mute control mechanism
FR349462A
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1905-05-30
Pneumatic mechanism automatically playing any keyboard musical instrument
FR323605A
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1903-03-10
A mechanism for adjusting the hardness of the keyboard of keyboard musical instruments called "the regulomane"
FR335645A
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1904-02-03
Apparatus for automatically playing keyboard musical instruments
CH32802A
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1905-09-15
Device for automatic actuation by compressed air of pipe musical instruments ert keyboard
FR351723A
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1905-07-24
Register cover for hand or mechanically operated musical instruments
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1904-07-01
Violin keyboard
FR9598E
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1908-12-05
Violin keyboard
CA86278A
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1904-03-29
Mechanism for accentuating musical notes
CA92691A
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1905-04-18
Player for keyboard musical instruments
FR336827A
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1904-03-18
Emergency pedal with stepladder for keyboard instruments
CA99954A
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1906-07-10
Keyboard for musical instruments
FR319830A
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1902-11-25
Piano Keyboard Hardener
FR345272A
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1904-11-26
Mechanics for mechanical musical instruments
FR348467A
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1905-04-14
Improvement in mechanical keyboard instruments
CA92160A
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1905-03-14
Operating mechanism for stringed instruments