DE266162C
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DE102019000364B3
(de )
2019-08-22
Handharmonika
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(de )
1980-12-11
Pneumatischer Verstärker
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DE503548C
(de )
1930-07-24
Einrichtung an Orgelpfeifen zur AEnderung der Tonstaerke
DE181963C
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(de )
1934-05-02
Diskantmechanik fuer Handharmoniken mit Hilfstoenen
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DE385691C
(de )
1923-11-27
Musikspielwerk
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DE1191021B
(de )
1965-04-15
Vorrichtung zur Steuerung eines elektrischen Schalters
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DE28057C
(de )
Neuerung an Registerzügen für Accordeons
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