United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 82
^ IJVrMJ^lOSS. S PETEBS CO., PHOTO-LITHO., WASMrHGTON. I I I (No Model.) 2 Sheets—Sheet 2. F. M. & J. A. E. CRISWELL. PHONOGRAPH. No. 470,477. Patented Mar. 8, 1892. … WI2J\r^SS£JS »« zyr^j^20s^. WASHINOTON, I United States Patent Office. FRANCIS M. CRISWELL, OF WASHINGTON, DISTRICT OF COLUMBIA, ANDJAMES A. E. CRISWELL, OF BROOKLYN, NEW YORK; SAID JAMES A.E. CRISWELL ASSIGNOR TO SAID FRANCIS M. CRISWELL. PHONOGRAPH. SPECIFICATION forming part of Letters Patent…
Phonograph · Patents
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