Inside Out Library

[Graphophone patents] (1878)

United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 401

An illustration from [Graphophone patents], 1878, leaf 401
e ofthe facing, under the influence of said irregu-larities of the matrix, to assume irregulari-ties which are impressed into the face of saidhacking, and then solidifying the facing andremoving the pressure. In testimony whereof I have signed myname to this specification in the presence oftwo… … Vz Js^J6

Phonograph · Patents

Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.

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