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AU212586B2 - Improvements in intercommunication systems - Google Patents
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AU212586B2 - Improvements in intercommunication systems - Google Patents

Improvements in intercommunication systems

Info

Publication number
AU212586B2
AU212586B2 AU12271/55A AU1227155A AU212586B2 AU 212586 B2 AU212586 B2 AU 212586B2 AU 12271/55 A AU12271/55 A AU 12271/55A AU 1227155 A AU1227155 A AU 1227155A AU 212586 B2 AU212586 B2 AU 212586B2
Authority
AU
Australia
Prior art keywords
intercommunication systems
intercommunication
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
AU12271/55A
Other versions
AU1227155A (en
Inventor
Howard and George Pelham Maitland Cochrane Ronald
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.)
Individual
Original Assignee
Individual
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of AU1227155A publication Critical patent/AU1227155A/en
Publication of AU212586B2 publication Critical patent/AU212586B2/en
Expired legal-status Critical Current

Links

AU12271/55A 1955-09-19 Improvements in intercommunication systems Expired AU212586B2 (en)

Publications (2)

Publication Number Publication Date
AU1227155A AU1227155A (en) 1956-03-22
AU212586B2 true AU212586B2 (en) 1956-03-22

Family

ID=

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