Inside Out Library
[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 521
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C^\ vriifiA AiW i. l±UJJ £d ixt. i Hiixi x . SOUND BOX, 1,143,394- J. Hoffay, Patented-^une 15, 1915,Filed-I£aroh 13, 1914. 1,143,394. J. HOFFAY. SOUND BOX. APPLICATION FILED MAR. 13, 1914. Patented June 15,1915. 2 SHEETS-SHEET 1. … r^/<? <Z2~~^s^*~f THE NORMS PETERS CO.. PHOTC-UTHO.. WASHINGTON, u. *.. 1,143,394. J. HOFFAY. SOUND BOX.APPLICATION FILED MAR. 13, 1914. Patented June 15, 1915. 2 SHEETS-SHEET 2.Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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