Inside Out Library · Explore
[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 1063
![An illustration from [Graphophone patents], 1878, leaf 1063](https://img.insideoutlibrary.com/img/1024/ia-graphophonepaten15unit-1063-555.webp)
to WITNESSES INVENTOR ATTORNEYS. PLANOGRAPH CO., WASHINGTON, D. C E. H. AMET. COMBINED PHONOGRAPHIC AND MOTION PICTURE APPARATUS FOR PRODUCING INDEXED SYNCHRONOUS RECORDS.APPLICATION FILED DEC. 2?, 1912. 1,162,433. Patented Nov. 30, 1915. 2 SHEETS-SHEET 2. JF^J^ … \-4S- Jtffagf.^-* j^&a&o <TtPhonograph · 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 [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-62-13.webp)
