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AT&T22 files
AutomaticElectric5 files
BellCore2 files
BellLabs2 files
BellSystem8 files
CoastCom5 files
Comdial2 files
Comfab2 files
Dynatel2 files
GeneralSignal2 files
Grandcom2 files
Hitachi2 files
IIASA3 files
IllinoisBell7 files
KrownResearch1 files
Microwaves&RFMagazine1 files
Motorola2 files
NewJerseyBell2 files
Northcom2 files
NorthernTelecom7 files
OKI3 files
Phillips2 files
Reliance2 files
Rockwell3 files
SouthernBell2 files
StrombergCarlson2 files
Teleconnect2 files
Teltrend2 files
Toshiba2 files
WesternElectric3 files
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