Inside Out Library

[Graphophone patents] (1878)

United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 725

An illustration from [Graphophone patents], 1878, leaf 725
aid depressions being providedwith terminal offsets forming stops, said off-sets being provided with depressions or in-dentations adapted to interlock and to secure the sections of the horn against extendingwhen collapsed. In testimony whereof I have hereto affixedmy signature in the presence of t… … ^9J> Wit

Phonograph · Patents

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

More pictures from [Graphophone patents]

More like this