AU147489B2 - Improvements in automatic switches as used in telephone systems - Google Patents

Improvements in automatic switches as used in telephone systems

Info

Publication number
AU147489B2
AU147489B2 AU30921/49A AU3092149A AU147489B2 AU 147489 B2 AU147489 B2 AU 147489B2 AU 30921/49 A AU30921/49 A AU 30921/49A AU 3092149 A AU3092149 A AU 3092149A AU 147489 B2 AU147489 B2 AU 147489B2
Authority
AU
Australia
Prior art keywords
telephone systems
automatic switches
switches
automatic
telephone
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
AU30921/49A
Other versions
AU3092149A (en
Filing date
Publication date
Application granted granted Critical
Publication of AU3092149A publication Critical patent/AU3092149A/en
Publication of AU147489B2 publication Critical patent/AU147489B2/en
Application filed filed Critical
Expired legal-status Critical Current

Links

AU30921/49A 1949-11-09 Improvements in automatic switches as used in telephone systems Expired AU147489B2 (en)

Publications (2)

Publication Number Publication Date
AU3092149A AU3092149A (en) 1930-01-12
AU147489B2 true AU147489B2 (en) 1930-01-12

Family

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