AU1156452A - Improvements in or. relating to telephone or like systems - Google Patents

Improvements in or. relating to telephone or like systems

Info

Publication number
AU1156452A
AU1156452A AU11564/52A AU1156452A AU1156452A AU 1156452 A AU1156452 A AU 1156452A AU 11564/52 A AU11564/52 A AU 11564/52A AU 1156452 A AU1156452 A AU 1156452A AU 1156452 A AU1156452 A AU 1156452A
Authority
AU
Australia
Prior art keywords
telephone
relating
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
AU11564/52A
Other versions
AU162652B2 (en
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.)
British Telecommunications Research Ltd
Original Assignee
British Telecommunications Research Ltd
Filing date
Publication date
Application filed by British Telecommunications Research Ltd filed Critical British Telecommunications Research Ltd
Application granted granted Critical
Publication of AU162652B2 publication Critical patent/AU162652B2/en
Publication of AU1156452A publication Critical patent/AU1156452A/en
Expired legal-status Critical Current

Links

AU11564/52A 1952-07-25 Improvements in or. relating to telephone or like systems Expired AU162652B2 (en)

Publications (2)

Publication Number Publication Date
AU162652B2 AU162652B2 (en) 1952-09-25
AU1156452A true AU1156452A (en) 1952-09-25

Family

ID=

Similar Documents

Publication Publication Date Title
AU162652B2 (en) Improvements in or. relating to telephone or like systems
AU1156452A (en) Improvements in or. relating to telephone or like systems
AU161863B2 (en) Improvements in or relating to telephone or like signalling systems
AU164406B2 (en) Improvements in or relating to telephone or like systems
AU166036B2 (en) Improvements in or relating to telephone or like systems
AU1154452A (en) Improvements in or relating to telephone or like signalling systems
AU164589B2 (en) Improvements in or relating to telephone systems
AU1853953A (en) Improvements in or relating to telephone or like systems
AU1853853A (en) Improvements in or relating to telephone or like systems
CA486162A (en) Telephone or like systems
AU163860B2 (en) Improvements in or relating to two-way telecommunication systems
AU1581753A (en) Improvements in or relating to telephone systems
AU157448B2 (en) Improvements in or relating to voice frequency-signalling system
AU161410B2 (en) Improvements in or relating to facsimile telegraph systems
AU155439B2 (en) Improvements in or relating to resilient systems
AU153829B2 (en) Improvements in or relating to aerial systems
AU1029252A (en) Improvements in or relating to two-way telecommunication systems
AU160959B2 (en) Improvements in lubricating systems
AU211640B2 (en) Improvements in or relating to telephone or like systems
AU208529B2 (en) Improvements in or relating to telephone or like systems
AU156907B2 (en) Improvements In or relating to telephone signalling arrangements
AU165490B2 (en) Improvements in or relating to automatic telephone systems
AU159707B2 (en) Improvements in code communication systems
AU161412B2 (en) Improvements in pumps
AU163099B2 (en) Improvements in pumps