Inside Out Library · Explore
[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 147
![An illustration from [Graphophone patents], 1878, leaf 147](https://img.insideoutlibrary.com/img/1024/ia-graphophonepaten07unit-147-115.webp)
CharlesL.Chisholm inventor Attorneys No. 814,941. PATENTED MAR. 13, 1906. C. L. CHISHOLM.PITCH INDICATING ATTACHMENT FOR SOUND REPRODUCING MACHINES. APPLICATION FILED AUG. 8, 1905. 5 SHEETS—SHEET 2. Jig. 2. … 3ig.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
