United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 588
H. G. WIEDER. SOUND REPRODUCING AND RECORDING INSTRUMENT. APPLICATION PILED DEC. 18, 1909. 1,01 1,298. Patented Dec. 12, 1911. Fin I … COLl'MHTA PLANOOPAPM CO., WASHINGTON. H. C.
Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
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