United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 431
ob\\X>GA\fcyt THE NOtttUS PETtUtSCO.. RHOTO-UTHO.. WASHINGTON. D. C 1,139,224. W. H. PUMPHREY.TALKING MACHINE. APPLICATION FILED OCT. 5, 1911. Patented May 11,1915. 2 SHEETS-SHEET 2. J%c?.£. … (JLxlQZl
Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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