United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 640
J^^.^. … WITNESSES. IJSIVENTOR.^ ^ <(^ .^^2^=<;^i^ . PhOTO-LITHO , WASHINGTON D C. United States Patent Office. LOUIS GLASS, OF SAN FRANCISCO, CALIFORNIA.PHONOGRAPH ATTACHMENT. SPLCIFICATION forming part of Letters Patent No. 539,806, dated May 28,1895. Application filed May 31p 1894. Serial So.…
Phonograph · Patents
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