United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 809
J1!!!- S- … / / 3 JjtEr- £11 T 4 J- z ^ 3 JlEr_ *? ,* 7 s V ( ftt f f t <TV sfe t / s / f ZIZ2 T^ 7 / JlBr_ ID- WITNESSES: * 6t/z&^6/ BY INVENTOR. ?T ATTORNEYS. UNITED STATES PATENT OFFICE. WILLIAM W. YOUNG, OF AGAWAM, MASSACHUSETTS, ASSIGNOR TO FRANK H. YOUNG, OF ST. LOUIS, MISSOURI. ACOUSTIC…
Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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