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*035  $a(EXLNZ-47BIBSYS_NETWORK)997411524364702201
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*24500$aElectronic switching :$bcentral office systems of the world$cedited by Amos E. Joel, Jr.
*260  $aNew York$bIEEE Press$cc1976
*300  $avii, 279 s.$bill.
*4900 $aIEEE Press selected reprint series
*650 7$aAutomatisk telefon$2tekord$_186832600
*650 7$aTelefonanlegg$xKoblinger$2tekord$_187347500
*650 7$aTelefonsentraler$2tekord$_186832700
*7001 $aJoel, Amos E.$0(NO-TrBIB)90169968$_35713700
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*999  $aoai:nb.bibsys.no:997411524364702202$b2021-11-14T19:51:30Z$z997411524364702202
^