AU233869B2 - Improvements in automatic or semiautomatic telephone systems - Google Patents

Improvements in automatic or semiautomatic telephone systems

Info

Publication number
AU233869B2
AU233869B2 AU43632/58A AU4363258A AU233869B2 AU 233869 B2 AU233869 B2 AU 233869B2 AU 43632/58 A AU43632/58 A AU 43632/58A AU 4363258 A AU4363258 A AU 4363258A AU 233869 B2 AU233869 B2 AU 233869B2
Authority
AU
Australia
Prior art keywords
automatic
telephone systems
semiautomatic telephone
semiautomatic
systems
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
AU43632/58A
Other versions
AU4363258A (en
Inventor
Leslie Galvin John
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.)
Automatic Telephone and Electric Co Ltd
Original Assignee
Automatic Telephone and Electric Co Ltd
Filing date
Publication date
Application filed by Automatic Telephone and Electric Co Ltd filed Critical Automatic Telephone and Electric Co Ltd
Application granted granted Critical
Publication of AU4363258A publication Critical patent/AU4363258A/en
Publication of AU233869B2 publication Critical patent/AU233869B2/en
Expired legal-status Critical Current

Links

AU43632/58A 1958-11-25 Improvements in automatic or semiautomatic telephone systems Expired AU233869B2 (en)

Publications (2)

Publication Number Publication Date
AU4363258A AU4363258A (en) 1959-05-28
AU233869B2 true AU233869B2 (en) 1959-05-28

Family

ID=

Similar Documents

Publication Publication Date Title
AU233869B2 (en) Improvements in automatic or semiautomatic telephone systems
AU4363258A (en) Improvements in automatic or semiautomatic telephone systems
AU228802B2 (en) Improvements in automatic and semiautomatic telephone systems
CA557106A (en) Automatic telephone systems
CA567448A (en) Automatic telephone systems
AU226993B2 (en) Improvements in or relating to automatic telephone systems
AU228480B2 (en) Improvements in or relating to automatic telephone systems
CA571948A (en) Line selecting means in automatic telephone systems
AU4517459A (en) Improvements in automatic and semiautomatic telephone systems
AU250434B2 (en) Improvements in automatic telephone systems
AU3830158A (en) Improvements in or relating to automatic telephone systems
AU3830058A (en) Improvements in or relating to automatic telephone systems
CA562242A (en) Automatic telephone system
AU226404B2 (en) Improvements in telephone systems
AU226577B2 (en) Improvements in telephone systems
AU226826B2 (en) Improvements in telephone systems
AU234460B2 (en) Improvements in or relating to automatic telephone. systems
AU227325B2 (en) Improvements in metering arrangements for automatic telephone systems
AU5999560A (en) Improvements in automatic telephone systems
AU227798B2 (en) Improvements relating to automatic telephone systems
AU265891B2 (en) Improvements in automatic telephone systems
CA555013A (en) Construction elements for contact banks in automatic telephone systems
CA565969A (en) Automatic telephone systems provided with party lines
CA562062A (en) Automatic telephone exchange
CA565970A (en) Automatic telephone systems provided with restricted party lines