AU1542828A - Improvements in or relating" to telephone systems - Google Patents

Improvements in or relating" to telephone systems

Info

Publication number
AU1542828A
AU1542828A AU15428/28A AU1542828A AU1542828A AU 1542828 A AU1542828 A AU 1542828A AU 15428/28 A AU15428/28 A AU 15428/28A AU 1542828 A AU1542828 A AU 1542828A AU 1542828 A AU1542828 A AU 1542828A
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
AU15428/28A
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 AU1542828A publication Critical patent/AU1542828A/en
Expired legal-status Critical Current

Links

AU15428/28A 1929-05-21 Improvements in or relating" to telephone systems Expired AU1542828A (en)

Publications (1)

Publication Number Publication Date
AU1542828A true AU1542828A (en) 1929-06-04

Family

ID=

Similar Documents

Publication Publication Date Title
AU1542828A (en) Improvements in or relating" to telephone systems
AU880227A (en) Improvements in or relating' to telephone systems
AU1269328A (en) Improvements' in or relating to telephone systems
AU2434629A (en) Improvements in or relating to telephone systems
AU1424828A (en) Improvements in or relating to telephone systems
AU2221329A (en) Improvements in or relating to telephone systems
AU2249329A (en) Improvements in or relating to telephone systems
AU2427129A (en) Improvements in or relating to telephone systems
AU1879729A (en) Improvements in or relating to telephone systems
AU2440629A (en) Improvements in or relating to telephone systems
AU2105229A (en) Improvements in or relating to telephone systems
AU2095929A (en) Improvements in or relating to interconnecting arrangements for use in telephone systems
AU1905829A (en) Improvements in and relating' to transmitting systems
AU1337828A (en) Improvements in or relating" to picture andthe like telegraph systems
AU2191529A (en) Improvements in or relating to communication systems
AU1680424A (en) Improvements in or relating' to telephone systems
AU1995124A (en) Improvements in or relating' to telephone systems
AU1114728A (en) Improvements in or relating to telephone systems
AU1144628A (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
AU1208328A (en) Improvements in or relating to telephone systems
AU1213628A (en) Improvements in or relating to telephone systems
AU1130928A (en) Improvements in or relating to telephone systems
AU1227328A (en) Improvements in or relating to telephone systems