AU714227A - Improvements in or relating to telephone systems - Google Patents

Improvements in or relating to telephone systems

Info

Publication number
AU714227A
AU714227A AU7142/27A AU714227A AU714227A AU 714227 A AU714227 A AU 714227A AU 7142/27 A AU7142/27 A AU 7142/27A AU 714227 A AU714227 A AU 714227A AU 714227 A AU714227 A AU 714227A
Authority
AU
Australia
Prior art keywords
relating
telephone systems
telephone
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
AU7142/27A
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.)
Associated Telephone and Telegraph Co
Original Assignee
Associated Telephone and Telegraph Co
Filing date
Publication date
Application filed by Associated Telephone and Telegraph Co filed Critical Associated Telephone and Telegraph Co
Publication of AU714227A publication Critical patent/AU714227A/en
Expired legal-status Critical Current

Links

AU7142/27A 1927-05-04 Improvements in or relating to telephone systems Expired AU714227A (en)

Publications (1)

Publication Number Publication Date
AU714227A true AU714227A (en) 1928-01-24

Family

ID=

Similar Documents

Publication Publication Date Title
AU972527A (en) Improvements in or relating to telephone systems
AU952627A (en) Improvements in or relating to telephone systems
AU653927A (en) Improvements in or relating to telephone systems
AU688427A (en) Improvements in or relating to telephone systems
AU1008227A (en) Improvements in or relating to telephone systems
AU924327A (en) Improvements in or relating to telephone systems
AU1031927A (en) Improvements in or relating to telephone systems
AU967827A (en) Improvements in or relating to telephone systems
AU716827A (en) Improvements in or relating to telephone systems
AU714227A (en) Improvements in or relating to telephone systems
AU144726A (en) Improvements in or relating to telephone systems
AU2127125A (en) Improvements in or relating to telephone systems
AU223426A (en) Improvements in or relating to telephone systems
AU451426A (en) Improvements in or relating to telephone systems
AU140326A (en) Improvements in or relating to telephone systems
AU906027A (en) Improvements in and relating to telephone systems
AU730227A (en) Improvements in telephone systems
AU545727A (en) Improvements in telephone systems
AU540727A (en) Improvements relating to telephone systems
AU383026A (en) Improvements relating to telephone systems
AU1208328A (en) Improvements in or relating to telephone systems
AU1227328A (en) Improvements in or relating to telephone systems
AU1130928A (en) Improvements in or relating to telephone systems
AU1175128A (en) Improvements in or relating to telephone systems
AU1204828A (en) Improvements in or relating to telephone systems