United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 511
ing connecting said apertures andadjustable means located in said cylinder,which can be adjusted to direct the soundthrough said sound-conveying tubing, where-by the length of the sound-conduit can bemodified, thereby modifying the reproducedsound. In testimony whereof I affix my signaturein… … J?Xg.£.
Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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