AU228802B2 - Improvements in automatic and semiautomatic telephone systems - Google Patents

Improvements in automatic and semiautomatic telephone systems

Info

Publication number
AU228802B2
AU228802B2 AU45174/59A AU4517459A AU228802B2 AU 228802 B2 AU228802 B2 AU 228802B2 AU 45174/59 A AU45174/59 A AU 45174/59A AU 4517459 A AU4517459 A AU 4517459A AU 228802 B2 AU228802 B2 AU 228802B2
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
AU45174/59A
Other versions
AU4517459A (en
Inventor
Leslie Galvin and Peter Douglas Arthur Wooler Wright 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 AU4517459A publication Critical patent/AU4517459A/en
Publication of AU228802B2 publication Critical patent/AU228802B2/en
Expired legal-status Critical Current

Links

AU45174/59A 1959-01-20 Improvements in automatic and semiautomatic telephone systems Expired AU228802B2 (en)

Publications (2)

Publication Number Publication Date
AU4517459A AU4517459A (en) 1959-07-23
AU228802B2 true AU228802B2 (en) 1959-07-23

Family

ID=

Similar Documents

Publication Publication Date Title
AU228802B2 (en) Improvements in automatic and semiautomatic telephone systems
AU4517459A (en) Improvements in automatic and semiautomatic telephone systems
AU250434B2 (en) Improvements in automatic telephone systems
AU5999560A (en) Improvements in automatic telephone systems
AU233869B2 (en) Improvements in automatic or semiautomatic telephone systems
AU4363258A (en) Improvements in automatic or semiautomatic telephone systems
CA571948A (en) Line selecting means in automatic telephone systems
AU235231B2 (en) Improvements in telephone systems
AU231260B2 (en) Improvements in telephone systems
AU249227B2 (en) Improvements in or relating to automatic telephone systems
AU4583159A (en) Improvements in telephone systems
AU4713259A (en) Improvements in telephone systems
AU226826B2 (en) Improvements in telephone systems
AU226577B2 (en) Improvements in telephone systems
AU226404B2 (en) Improvements in telephone systems
AU234460B2 (en) Improvements in or relating to automatic telephone. systems
AU6030760A (en) Improvements in or relating to automatic telephone systems
AU267830B2 (en) Improvements in automatic telephone systems
CA569198A (en) Automatic telephone systems
CA584178A (en) Automatic telephone systems
CA578982A (en) Automatic telephone systems
CA587624A (en) Automatic telephone systems
CA586768A (en) Automatic telephone systems
CA585771A (en) Automatic telephone systems
CA583278A (en) Automatic telephone systems