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[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 121
![An illustration from [Graphophone patents], 1878, leaf 121](https://img.insideoutlibrary.com/img/1024/ia-graphophonepaten20unit-121-39.webp)
V0< ^r\JT774> ?T I V I I r ^IT nr a 4 *■ U ft © If » ^^s 0> ni Patented Jan. 1,1918. 5 SHEETS-SHEET I. … KPhonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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