United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 955
ecting throughsaid slotted arm into the spiral groove,whereby turning of the drum bjr the headwill swing the extension and arm. JAMES H. DOOLEY. Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. ^ vjri.ixj.i liwiiiwHi… … 7&
Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents], 1878, leaf 955](https://img.insideoutlibrary.com/img/1024/ia-graphophonepaten20unit-955-431.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten10unit-735-502.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten15unit-353-209.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten07unit-637-402.webp)
