. Collection of United States patents granted to Thomas A. Edison, 1869-1884 . AM. PHOTO-LITHOGRAPHIC-CO. N Y. (OSBORNES process.) 2 Sheets — Sheet 2. T. A. in Printing Telegraph Instruments. No. 131,342. Patented Sep. 17, 1872.

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Keywords: ., boo, bookcentury1800, booksubjectinventions, booksubjecttelephone