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G10C—PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
G10C3/00—Details or accessories
G10C3/06—Resonating means, e.g. soundboards or resonant strings; Fastenings thereof
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FR701418D1930-08-291930-08-29Nouvelle table d'harmonie pour augmenter le rendement en sonorité des pianos droits, à queue et autres instruments
ExpiredFR701418A
(fr)