United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 631
This specification signed and witnessedthis 19th day of December 1911. . THOS. A. EDISON.Witnesses: Frederick Bachmann,Anna E. Klehm. Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C. METHOD OF MAKING PHONOGRAPH KECOHDS, #… … JF*?.2 rJJ ,4-
Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents], 1878, leaf 631](https://img.insideoutlibrary.com/img/1024/ia-graphophonepaten15unit-631-351.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten07unit-331-223.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten10unit-763-515.webp)
