Inside Out Library
[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 301
![An illustration from [Graphophone patents], 1878, leaf 301](https://img.insideoutlibrary.com/img/1024/ia-graphophonepaten10unit-301-220.webp)
^ . ^ INVENTOR Vito Mtot-eD Vrso. mORNEYS .KO.tw e =«.>- CO P»0T0-UT~<»..P«W1WA»W0«. 0 c V. E. DURSO. SOUND AMPLIFIER FOR PHONOGRAPHS. APPLICATIOH FILED OCT. 6, 1909. 956,235. Patented Apr. 26,1910. 38H££TB-8E££T 2. I^ig-- 3 -Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
More pictures from [Graphophone patents]
More like this
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten20unit-1243-548.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten15unit-155-100.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten20unit-767-353.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten07unit-531-354.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten15unit-705-382.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten07unit-63-63.webp)