United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 745
ries out of contact with thehorn. 9. The combination with a phonograph- 85horn, of a plurality of annular disks in thelarger end thereof, and an annular disk in theaperture of one or more of said larger disks. In testimony whereof I have affixed mysignature, in presence of two witnesses, this 901st… … S^x^.^
Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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