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Mary Manning fonds
Mary Manning fonds
Northern Telecom employee newsletters
Northern Telecom employee newsletters
Bell-Northern Research Limited publications
Bell-Northern Research Limited publications
Number 5 Crossbar for Local- and Long-Distance Switching
Number 5 Crossbar for Local- and Long-Distance Switching
Photographs
Photographs
Slides
Slides
Slides
Slides
Schematics
Schematics
Method of providing dialtone first on step by step telephone systems
Method of providing dialtone first on step by step telephone systems
Crossbar Telephone System (file 1 of 2)
Crossbar Telephone System (file 1 of 2)
Crossbar Telephone System (file 2 of 2)
Crossbar Telephone System (file 2 of 2)
"Product handbook: technology the world calls on" book
"Product handbook: technology the world calls on" book
Oversized photograph
Oversized photograph
"DMS-100 Family System Description"
"DMS-100 Family System Description"
Northern Telecom Supernode/Asquith
Northern Telecom Supernode/Asquith
Northern Telecom Reports: Edition #2/1994
Northern Telecom Reports: Edition #2/1994
Northern Telecom Reports: Edition #3/1994
Northern Telecom Reports: Edition #3/1994
Northern Telecom Reports: Edition #1/1995
Northern Telecom Reports: Edition #1/1995
Northern Telecom Reports: Edition #3/1995
Northern Telecom Reports: Edition #3/1995
Northern Telecom Reports: Edition #4/1995
Northern Telecom Reports: Edition #4/1995