American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation (1909)
Maver, William, jr. [from old catalog] · New York, Maver publishing company · leaf 381
rcuit400 miles in length having a resistance of 4000 oh ink See Fio-s. 242I), 24 jr. ecord[I pest CHAPTER XIX. WRITING TELEGRAPH SYSTEMS. Writing, or autographic, telegraph systems may be distinguished from automaticfac-simile telegraph systems in that the former systems electrically transmit and… … T
Telegraph
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.