United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 118
THC NOHHIS PtTEHS CO., FMOTO-UTHO., WASMINQTOW, 0. I (No Model.) No. 474,946, L. S. CLARKE. PHONOGRAPH. 4 Sheets—Sheet 3. Patented May 17, 1892, … THE rtOBRlS MTERS CO., PHOTO-LJTHO., 5^ \ i (No Model.) No. 474.946, L. S. CLARKE. PHONOGRAPH. 4 Sheets—Sheet 4. Patented May 17, 1892.
Phonograph · Patents
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