000 00962 a2200217 4500
003 Nust
005 20221226100032.0
010 _a 78318256
020 _a0198593589 :
_a0198593570
040 _cNust
082 0 0 _a621.385,SMI
100 1 _aSmith, Sydney F.
_9105857
245 1 0 _aTelephony and telegraphy :
_ban introduction to instruments and switching systems (electromechanical and reed-electronic) /
_cSydney F. Smith.
250 _a3rd ed.
260 _aOxford ;
_aNew York :
_bOxford University Press,
_c1978.
300 _axiv, 278 p. :
_bill. ;
_c26 cm.
505 _aTelephone and Teleprinters (Page-1), Relays (Page-29), Signaling (Page-58), Switching Systems (Page-80), Strower Systems-Selector Mechanism (Page-115), Strower System-Selector Circuits (Page-140), Traffic and Trunking (Page-173), Distribution Farms (Page-205), Exchange Power Plant (Page-221).
650 0 _aTelegraph.
_950197
650 0 _aTelephone.
_9105735
942 _2ddc
_cBK
999 _c183726
_d183726