AU480339B2 - - Google Patents
Info
- Publication number
- AU480339B2 AU480339B2 AU59331/73A AU5933173A AU480339B2 AU 480339 B2 AU480339 B2 AU 480339B2 AU 59331/73 A AU59331/73 A AU 59331/73A AU 5933173 A AU5933173 A AU 5933173A AU 480339 B2 AU480339 B2 AU 480339B2
- Authority
- AU
- Australia
- 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.)
- Active
Links
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US28292172A | 1972-08-23 | 1972-08-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
AU480339B2 true AU480339B2 (uk) | |
AU5933173A AU5933173A (en) | 1975-02-20 |
Family
ID=23083695
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU59331/73A Expired AU5933173A (en) | 1972-08-23 | 1973-08-17 | Telephone systems |
Country Status (11)
Country | Link |
---|---|
US (1) | US3795776A (uk) |
JP (1) | JPS5830794B2 (uk) |
AU (1) | AU5933173A (uk) |
BE (1) | BE803833A (uk) |
CA (1) | CA984982A (uk) |
DE (1) | DE2341827C2 (uk) |
FR (1) | FR2197293B1 (uk) |
GB (1) | GB1436460A (uk) |
IT (1) | IT994635B (uk) |
NL (1) | NL7311384A (uk) |
SE (1) | SE394170B (uk) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3991282A (en) * | 1974-12-27 | 1976-11-09 | Feil Thomas E | Multi station telephone switching system |
US4677662A (en) * | 1984-08-23 | 1987-06-30 | Lott Thomas M | Multiple line self-contained telephone |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3239610A (en) * | 1962-12-26 | 1966-03-08 | Bell Telephone Labor Inc | Line circuit for key telephone system |
US3283083A (en) * | 1963-03-13 | 1966-11-01 | American Telephone & Telegraph | Telephone subscriber's line circuit |
US3436488A (en) * | 1966-03-17 | 1969-04-01 | Bell Telephone Labor Inc | Line circuit for a key telephone system utilizing a single multifunction supervisory relay |
US3647983A (en) * | 1969-08-25 | 1972-03-07 | San Bar Electronics Corp | Key system line card circuit |
-
1972
- 1972-08-23 US US00282921A patent/US3795776A/en not_active Expired - Lifetime
-
1973
- 1973-03-01 CA CA164,989A patent/CA984982A/en not_active Expired
- 1973-08-16 SE SE7311197A patent/SE394170B/xx unknown
- 1973-08-17 NL NL7311384A patent/NL7311384A/xx not_active Application Discontinuation
- 1973-08-17 FR FR7330025A patent/FR2197293B1/fr not_active Expired
- 1973-08-17 AU AU59331/73A patent/AU5933173A/en not_active Expired
- 1973-08-18 DE DE2341827A patent/DE2341827C2/de not_active Expired
- 1973-08-21 GB GB3947573A patent/GB1436460A/en not_active Expired
- 1973-08-21 BE BE134778A patent/BE803833A/xx unknown
- 1973-08-21 IT IT69492/73A patent/IT994635B/it active
- 1973-08-23 JP JP48093938A patent/JPS5830794B2/ja not_active Expired
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