FR883247A (en )1943-06-28 Keyboard controlled photographic recorder FR802799A (en )1936-09-15 Bowed string and keyboard musical instrument FR823743A (en )1938-01-25 Keyboard Musical Instrument Improvements FR860648A (en )1941-01-20 Musical instrument with keys FR673689A (en )1930-01-17 Keyboard musical instrument FR808874A (en )1937-02-17 Super suitable phonetic keyboard FR798164A (en )1936-05-11 Further development of flexible soundboard musical instruments FR607087A (en )1926-06-25 Stringed musical instrument FR801436A (en )1936-08-04 Mechanics for key-operated musical instruments FR665941A (en )1929-09-25 Stringed musical instrument FR853035A (en )1940-03-08 Small-scale string instrument of the grand piano genre FR735226A (en )1932-11-04 Keyboard attached applicable to all kinds of portable or non-portable stringed instruments FR863478A (en )1941-04-02 Portable musical instrument, blowing, with keyboard FR757670A (en )1933-12-30 Clarinet with diatonic touch FR588165A (en )1925-05-02 Keyboard Instrument Mechanism GR3524B (en )1932-02-08 MUSICAL INSTRUMENT STRING. FR594206A (en )1925-09-08 Improvement on mandolins and other similar plucked string instruments SU30542A1 (en )1933-05-31 Musical wind instrument FR826610A (en )1938-04-06 Refinements to plectrum, plucked strings, and bow musical instruments FR862453A (en )1941-03-07 Improvement in string and bow instruments FR711500A (en )1931-09-10 Musical instrument allowing to play on a keyboard, the direct play of several violins and cellos FR688202A (en )1930-08-20 Automatic playing string musical instrument FR692533A (en )1930-11-06 Improvements to pianos and other keyboard instruments FR786970A (en )1935-09-14 Zither keyboard FI16794A (en )1935-10-25 A stringed instrument with an amplifier and a procedure for changing its tone