Automatic telephony; a comprehensive treatise on automatic and semi-automatic systems (1921)
Smith, Arthur Bessey, b. 1875, Campbell, Wilson Lee · New York : McGraw-Hill · leaf 260
iber will be cautioned not touse the tenth hole marked 0 while dialing the office name, but to usethe sixth hole in which are the letters MNO. Also not to mistake theletter I in the fourth hole for the digit 1 in the first hole. Argon Dress Co, 24 E 12 STU yrsnt 2011 Argonaut Supply Corp, 50 Union…
Telephone
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