United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 404
section is inclined to the axis of said tablet and forms an anglewith a vertical or approximately vertical wall,said undulations corresponding in form to 55said vibrations, substantially as described. In testimony that I claim the foregoing asmy invention I have signed my name, in pres-ence of two… … ATTORNEYS. THE NATIONAL -LtTHOQRAPHINQ COMPANY,WAOHINQTON, O. C. (No Model.) 3 Sheets—Sheet 2. T. A. EDISON. PHONOGRAPH. No. 513,095. Patented Jan. 23, 1894.
Phonograph · Patents
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