[go: up one dir, main page]

AU235021A - Improvements in or relating to telephone systems - Google Patents

Improvements in or relating to telephone systems

Info

Publication number
AU235021A
AU235021A AU2350/21A AU235021A AU235021A AU 235021 A AU235021 A AU 235021A AU 2350/21 A AU2350/21 A AU 2350/21A AU 235021 A AU235021 A AU 235021A AU 235021 A AU235021 A AU 235021A
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
AU2350/21A
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.)
Automatic Electric Co
Original Assignee
Automatic Electric Co
Filing date
Publication date
Application filed by Automatic Electric Co filed Critical Automatic Electric Co
Publication of AU235021A publication Critical patent/AU235021A/en
Expired legal-status Critical Current

Links

AU2350/21A 1921-06-24 Improvements in or relating to telephone systems Expired AU235021A (en)

Publications (1)

Publication Number Publication Date
AU235021A true AU235021A (en) 1921-12-13

Family

ID=

Similar Documents

Publication Publication Date Title
AU36421A (en) Improvements in or relating to telephone systems
AU314621A (en) Improvements in or relating to telephone systems
AU235021A (en) Improvements in or relating to telephone systems
AU255521A (en) Improvements in or relating to telephone systems
AU28121A (en) Improvements in or relating to telephone systems
AU297721A (en) Improvements in or relating to telephone systems
AU418121A (en) Improvements in or relating to telephone systems
AU1398920A (en) Improvements in or relating to telephone systems
AU398921A (en) Improvements in or relating to telephone systems
AU400321A (en) Improvements in or relating to telephone systems
AU972122A (en) Improvements in or relating to telephone systems
AU478221A (en) Improvements in or relating to telephone systems
AU172921A (en) Improvements in or relating to automatic telephone systems
AU400221A (en) Improveinents in or relating to telephone systems
AU1613820A (en) Improvements in or relating to telephone systems
AU1796820A (en) Improvements in or relating to telephone systems
AU1832320A (en) Improvements in or relating to telephone systems
AU69921A (en) Improvements in or relating to telephones
AU69821A (en) Improvements in or relating to telephones
AU731522A (en) Improvements in or relating; to telephone systems
AU1114923A (en) Improvements in or relating" to telephone systems
AU747222A (en) Improvements in or relating to telephone systems
AU921822A (en) Improvements In or relating to telephone systems
AU1023022A (en) Improvements in or relating to telephone systems
AU1022922A (en) Improvements in or relating to telephone systems