United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 498
_Z^ V^^/V 7^/? jsr JX^y^y^yc^^OLM, U/cijiJt::o^^j;^i?t^-*T>^/ ///S/^rTOfiNe^y^^- i United States Patent Office, EDWARD H. AMET, OF CHICAGO, ILLINOIS.ERASING ATTACHMENT FOR PHONOGRAPHS. SPECIFICATION forming part of Letters Patent No. 521,456, dated June 19,1894. Application filed February…
Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents], 1878, leaf 498](https://img.insideoutlibrary.com/img/1024/ia-graphophonepaten02unit-498-215.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten07unit-447-299.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten20unit-403-178.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten20unit-367-155.webp)
