Communications
subject: DND, external affairs, teletype lines
description: Series of correspondence between W.W. Lockhart of External Affairs and J.B. Clement, D Sigs, pertaining to conversion of External Affairs circuits to duplex 75 wpm operation.
creator: Department of National Defence
source: Hydra Communications - Policy, RG24, 1250-36 Vol. 1, Library and Archives Canada (LAC)
publisher: Canada Declassified
date: 10/16/1959
rights: Canadian Crown
format: PDF
language: en
type: Text