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[Graphophone patents] (1878)

United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 865

An illustration from [Graphophone patents], 1878, leaf 865
THE MORRIS PETtfts CO., WASH I NOtOH.D. C No. 850,375. PATENTED APR. 16, 1907.0. KRAUS.FOLDING HORN. APPLICATION FILED KOV. 12, 1906. 2 8HEET8-8HEET 2. <w … ^^sS&E^ZL^^ thc houris PETtms co.. Washington, o. c UNITED STATES PATENT OFFICE. OTTO KRAUS, OF NEW YORK, N. Y.FOLDING HORN. JNo. 850,375. Specification of Letters Patent. Patented April 16,1907. Application filed November 12,1906. Serial No. 342,960. To all whom it may concern: Be it known…

Phonograph · Patents

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