Calibration in the Early 80s
'Telecom' - July '81 Standards Labs
Evolution of QA in BT (1983) - Mike Petrie
History of QAD - Draft 2 - Mike Petrie
Saved as html from MS Word.
The Inspector and the Bolts - Anon
LTS/I Branch chart - 22 Feb 1955 (2Mbyte jpg)
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