United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 577
--•-uuW- ^VXwwK* fflll1l]ll|J)lll>-jg FIG 2 … Wi. fn ^^^ ^^ ^tf^<f/l^-*^^^V-s-^yi..f^^^ 20 13 }j^ n William Hdward J^i^T^yoot TMC HORffIS fETCRS CO.. WASHINGTON. O. C IIN^ITED STATES PATENT OFFICE. GEORGE OULTON, CHARLES ABLETT, AND WILLIAM EDWARD LIGHTEOOT, OF LIVERPOOL, ENGLAND. SPEED-REGULATING DEVICE FOR SOUND RECORDING AND REPRODUCING…
Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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