Patents for Inventions - Abridgements of Specifications Class 88, Music and Musical...
Patents for Inventions - Abridgements of Specifications Class 88, Music and Musical Instruments, Period A.D. 1855 - 1905, (1893-1911), 9 vols.; Class 88(i), Musical Instruments, Automatic, Period A.D. 1909 - 1930, (1921-32), 4 vols.; Class 88(ii), Music and Musical Instruments other than Automatic, Period A.D. 1909 - 1930, (1921-1933), 4 vols., original printed paper wraps, institution stamps to some covers (17)