United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 887
,and a reproducer supported by said supportand movable around the axis of said recorddisc and toward and from the axis of said rec-ord disc to follow the record groove thereon. In testimony whereof, I have signed myname to this specification, in the presence of 115two subscribing witnesses. EDWARD… … J*S>*
Phonograph · Patents
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![An illustration from [Graphophone patents], 1878, leaf 887](https://img.insideoutlibrary.com/img/1024/ia-graphophonepaten07unit-887-571.webp)
