Gramophone, & c.: specification forming part of Letters Patent No. 637,197, dated 1899 November 14
Summary
Includes 2 pages of diagrams.
"Emile Berliner, of Washington, District of Columbia, assignor to the United States Gramophone Company, of same place."
Diagrams and specifications for Emile Berliner's "new and useful improvements in Gramophones or other sound reproducing machines...especially to the gramophone reproducers using a flat record-disk."
Tags
Date
01/01/1899
Source
Library of Congress
Copyright info
Public Domain