United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 445
O O WITNESSES … ~lK T*J* <* INVENTOR ^CyV ATTORNEY ( IHt NOHRIS PEfEkS CO.. PHOTO LITHO . WASHINGTON, D C. UNITED STATES PATENT OFFICE. ALMA A. ZAISS, OF KANSAS CITY, MISSOURI.COMMERCIAL TALKING-MACHINE. 1,139,947. Specification of letters Patent. Patented May 18,1915. Application filed May 11,1914. Serial No.…
Phonograph · Patents
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