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 332
loses the circuit of private wiper P-l. Further dialing is repeated by the line relay LR and relay R-3 by wayof the fourth wire through P-l. At the same time relay P-6 operatesrelay P-l to cut out the repeating coil and cut the talking lines through. LONG DISTANCE AND SUBURBAN EQUIPMENT 307 Release… … kVan Wert Lima i^Jt Kenton St.Marya 3 & ^Delaware .S^* JSS • Piqua ichmond ■>ja i TroySMjd Springfield 51.:> Mi. Washington C.H. IA? ,«» ,• Newark Cambridge Dayton 5£ Reynoldsburg 01-5 511. ZanesviUejCanal Winchester // V1 Lancaster KENTUCKY
Telephone
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