US4270432A
(en )
1981-06-02
Capo
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US3129626A
(en )
1964-04-21
Chord-forming attachment for stringed musical instrument
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DE259011C
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DE22561C
(de )
Neuerung an Accordeons
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DE101353C
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DE3646C
(de )
Saiteninstrument mit Klaviatur, bei welchem die Saiten durch Rupfen intonirt werden
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DE344792C
(de )
1921-11-30
Spielgeraet fuer gitarrenaehnliche Instrumente
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DE146732C
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DE55640C
(de )
Stimmvorrichtung für Zithern und ähnliche Saiteninstrumente
DE347303C
(de )
1922-01-17
Klavier
DE78518C
(de )
Accordzither
DE51274C
(de )
Klaviatur
DE4736C
(de )
Tonleiter-Anzeiger