United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 504
R. B. GOODRICH. CONTROL ATTACHMENT FOR DICTATING PHONOGRAPHS. APPLICATION FILED 1ULY 29, 1915. Patented Oct. 3, 1916. 1,200,100. 3 SHEETS— SHEET I. … OTtWJ
Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
![An illustration from [Graphophone patents], 1878, leaf 504](https://img.insideoutlibrary.com/img/1024/ia-graphophonepaten17unit-504-0.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten02unit-290-130.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten20unit-1057-474.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten20unit-901-404.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten15unit-717-388.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten02unit-134-52.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten19unit-248-0.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten04unit-810-0.webp)