AU165843B2 - Improvements in supervisory arrangements for telephone systems - Google Patents

Improvements in supervisory arrangements for telephone systems

Info

Publication number: AU165843B2
Authority: AU; Australia
Prior art keywords: telephone systems; supervisory; arrangements; supervisory arrangements; telephone
Prior art date: 1952-01-24
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

AU7594/52A

Other versions

Filing date

1952-01-24

Publication date

1952-03-27

1952-01-24 Application filed filed Critical

1952-03-27 Application granted granted Critical

1952-03-27 Publication of AU759452A publication Critical patent/AU759452A/en

1952-03-27 Publication of AU165843B2 publication Critical patent/AU165843B2/en

Status Expired legal-status Critical Current

AU7594/52A 1952-01-24 Improvements in supervisory arrangements for telephone systems Expired AU165843B2 (en)

Publication Number	Publication Date
AU759452A AU759452A (en)	1952-03-27
AU165843B2 true AU165843B2 (en)	1952-03-27

Publication	Publication Date	Title
AU165843B2 (en)	1952-03-27	Improvements in supervisory arrangements for telephone systems
AU759452A (en)	1952-03-27	Improvements in supervisory arrangements for telephone systems
AU155538B2 (en)	1952-04-03	Improvements in automatic telephone systems
AU206827B2 (en)	1955-08-11	Traffic supervisory arrangements in telephone systems
AU776252A (en)	1952-04-03	Improvements in automatic telephone systems
AU674755A (en)	1955-08-11	Traffic supervisory arrangements in telephone systems
CA489269A (en)	1952-12-30	Automatic telephone systems
CA486162A (en)	1952-09-02	Telephone or like systems
AU165054B2 (en)	1953-06-16	Improvements in telephone systems
AU162652B2 (en)	1952-09-25	Improvements in or. relating to telephone or like systems
AU160959B2 (en)		Improvements in lubricating systems
CA512309A (en)	1955-04-26	Telephone systems
CA510190A (en)	1955-02-15	Telephone systems
CA519014A (en)	1955-11-29	Telephone systems
CA512312A (en)	1955-04-26	Telephone systems
CA512311A (en)	1955-04-26	Telephone systems
CA512310A (en)	1955-04-26	Telephone systems
CA510665A (en)	1955-03-08	Telephone systems
CA512083A (en)	1955-04-19	Telephone systems
CA511747A (en)	1955-04-12	Telephone systems
CA488575A (en)	1952-12-02	Selective calling systems
CA488574A (en)	1952-12-02	Selective calling systems
CA488416A (en)	1952-11-25	Selective calling systems
CA495874A (en)	1953-09-08	Telephone systems
CA497078A (en)	1953-10-20	Telephone systems