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AU421551A - The automatic switching of tandem connections ina telephone system - Google Patents

The automatic switching of tandem connections ina telephone system

Info

Publication number
AU421551A
AU421551A AU4215/51A AU421551A AU421551A AU 421551 A AU421551 A AU 421551A AU 4215/51 A AU4215/51 A AU 4215/51A AU 421551 A AU421551 A AU 421551A AU 421551 A AU421551 A AU 421551A
Authority
AU
Australia
Prior art keywords
telephone system
automatic switching
ina telephone
tandem connections
tandem
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
AU4215/51A
Other versions
AU157742B2 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Brothers and Co Ltd
Original Assignee
Siemens Brothers and Co Ltd
Filing date
Publication date
Application filed by Siemens Brothers and Co Ltd filed Critical Siemens Brothers and Co Ltd
Application granted granted Critical
Publication of AU421551A publication Critical patent/AU421551A/en
Publication of AU157742B2 publication Critical patent/AU157742B2/en
Expired legal-status Critical Current

Links

AU4215/51A 1951-08-01 The automatic switching of tandem connections ina telephone system Expired AU157742B2 (en)

Publications (2)

Publication Number Publication Date
AU421551A true AU421551A (en) 1951-10-04
AU157742B2 AU157742B2 (en) 1951-10-04

Family

ID=

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