CH562541A5 - - Google Patents
Info
- Publication number
- CH562541A5 CH562541A5 CH1100273A CH1100273A CH562541A5 CH 562541 A5 CH562541 A5 CH 562541A5 CH 1100273 A CH1100273 A CH 1100273A CH 1100273 A CH1100273 A CH 1100273A CH 562541 A5 CH562541 A5 CH 562541A5
- Authority
- CH
- Switzerland
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
- H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
- H04Q3/625—Arrangements in the private branch exchange
Landscapes
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Small-Scale Networks (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US27572672A | 1972-07-27 | 1972-07-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH562541A5 true CH562541A5 (es) | 1975-05-30 |
Family
ID=23053559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1100273A CH562541A5 (es) | 1972-07-27 | 1973-07-27 |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US3777058A (es) |
| JP (1) | JPS5334844B2 (es) |
| AR (1) | AR200270A1 (es) |
| BE (1) | BE802762A (es) |
| BR (1) | BR7305535D0 (es) |
| CA (1) | CA1002162A (es) |
| CH (1) | CH562541A5 (es) |
| DE (1) | DE2337440C3 (es) |
| ES (1) | ES417293A1 (es) |
| FR (1) | FR2195140B1 (es) |
| GB (1) | GB1431937A (es) |
| IT (1) | IT991888B (es) |
| NL (1) | NL161018C (es) |
| SE (1) | SE393913B (es) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4351984A (en) * | 1980-07-25 | 1982-09-28 | Northern Telecom, Inc. | Apparatus for use in a telephone exchange including an operator cordboard position |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3341661A (en) * | 1963-10-23 | 1967-09-12 | Bell Telephone Labor Inc | Equipment for operator served calls at an intermediate switching center |
| GB1218344A (en) * | 1967-01-12 | 1971-01-06 | Gen Electric Co Ltd | Improvements in or relating to private telephone exchanges |
-
1972
- 1972-07-27 US US00275726A patent/US3777058A/en not_active Expired - Lifetime
-
1973
- 1973-02-07 CA CA163,107A patent/CA1002162A/en not_active Expired
- 1973-07-19 SE SE7310092A patent/SE393913B/xx unknown
- 1973-07-23 BR BR5535/73A patent/BR7305535D0/pt unknown
- 1973-07-23 NL NL7310232.A patent/NL161018C/xx not_active IP Right Cessation
- 1973-07-23 GB GB3490073A patent/GB1431937A/en not_active Expired
- 1973-07-24 DE DE2337440A patent/DE2337440C3/de not_active Expired
- 1973-07-25 BE BE133834A patent/BE802762A/xx not_active IP Right Cessation
- 1973-07-25 AR AR249263A patent/AR200270A1/es active
- 1973-07-25 JP JP8323873A patent/JPS5334844B2/ja not_active Expired
- 1973-07-26 FR FR7327482A patent/FR2195140B1/fr not_active Expired
- 1973-07-26 ES ES417293A patent/ES417293A1/es not_active Expired
- 1973-07-26 IT IT69264/73A patent/IT991888B/it active
- 1973-07-27 CH CH1100273A patent/CH562541A5/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| IT991888B (it) | 1975-08-30 |
| AR200270A1 (es) | 1974-10-31 |
| BR7305535D0 (pt) | 1974-08-22 |
| CA1002162A (en) | 1976-12-21 |
| AU5838873A (en) | 1975-01-23 |
| FR2195140B1 (es) | 1980-03-07 |
| JPS4960107A (es) | 1974-06-11 |
| DE2337440A1 (de) | 1974-02-14 |
| FR2195140A1 (es) | 1974-03-01 |
| SE393913B (sv) | 1977-05-23 |
| DE2337440C3 (de) | 1976-01-02 |
| NL161018B (nl) | 1979-07-16 |
| NL7310232A (es) | 1974-01-29 |
| DE2337440B2 (de) | 1975-05-07 |
| BE802762A (fr) | 1973-11-16 |
| NL161018C (nl) | 1979-12-17 |
| US3777058A (en) | 1973-12-04 |
| ES417293A1 (es) | 1976-03-16 |
| JPS5334844B2 (es) | 1978-09-22 |
| GB1431937A (en) | 1976-04-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |