United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 426
WITNESSp^ INVENTOR^^TTORNEYS (No Model.) 4 Sheets—Sheet 4. A. K. KELLER. ATTACHMENT FOR OPERATING PHONOGRAPHS. No. 518,190. Patented Apr. 10, 1894. … %/^ ^^^^ ^•ft.t<Pt m.K INVENTORBY ATTORNEYS ^^^ United States Patent Office. ALBERT K. KELLER, OF NEW YORK, N. Y., ASSIGNOR, BY MESNE ASSIGN-MENTS, TO THE AUTOMATIC PHONOGRAPH EXHIBITION COMPANY OFNEW YORK. ATTACHMENT FOR OPERATING PHONOGRAPHS. SPECIFICATION forming part of Letters Patent No.…
Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents], 1878, leaf 426](https://img.insideoutlibrary.com/img/1024/ia-graphophonepaten02unit-426-194.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten15unit-657-362.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten20unit-1027-463.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten15unit-333-197.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten20unit-81-28.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten07unit-435-289.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten10unit-469-327.webp)
