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HUT64152A
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Mechanism of tremolo for organ with sliding blower box
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HUT49228A
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Electropneumatic sound valve for organ with sliders
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HUT49229A
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Electropneumatic operating mechanism for adjusting the venetian swell of organs
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DD256939A5
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Device for footballing key instruments
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IT8720339D0
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Mechanism for playing piano notes
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ATA105987A
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Device for the foot control of button instruments
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HUT57933A
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Movement particularly for controlling slide organ stop or coupler
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HUT43200A
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Method and device for performing musical works, preferably for artistical interpreting of compositions written or set for organ
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