United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 621
depositedon a solid surface, and then causing thoseparts of the surface not protected by saidfluid to be differentiated in height from thoseparts protected by said fluid. In testimony whereof I hereby sign myname, in the presence of two subscribing wit-nesses, this 24th day of August, A. D. 1904.… … ■*.£>
Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents], 1878, leaf 621](https://img.insideoutlibrary.com/img/1024/ia-graphophonepaten07unit-621-393.webp)
