United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 741
n witness whereof, I have hereunto setmy hand this 22nd day of March, 1912. WILBUEN N. DENNISON.Witnesses: John D. Myers,Dean S. Renwick. Copies of this patent may be obtained for five cents Washingt each, by addressing the Commissioner of Patents,on, D. C. 4 K, SOUND REPRODUCING…
Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents], 1878, leaf 741](https://img.insideoutlibrary.com/img/1024/ia-graphophonepaten15unit-741-399.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten20unit-403-179.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten07unit-691-446.webp)