JPS4996609A - - Google Patents
Info
- Publication number
- JPS4996609A JPS4996609A JP48006648A JP664873A JPS4996609A JP S4996609 A JPS4996609 A JP S4996609A JP 48006648 A JP48006648 A JP 48006648A JP 664873 A JP664873 A JP 664873A JP S4996609 A JPS4996609 A JP S4996609A
- Authority
- JP
- Japan
- 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.)
- Granted
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)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP664873A JPS5331564B2 (enExample) | 1973-01-16 | 1973-01-16 | |
| BR211/74A BR7400211D0 (pt) | 1973-01-16 | 1974-01-14 | Sistema de painel auxiliar para mesa telefonica |
| US05/433,501 US3967075A (en) | 1973-01-16 | 1974-01-15 | Attendant board system in a telephone exchange |
| CA190,138A CA1031062A (en) | 1973-01-16 | 1974-01-15 | Attendant board system in a telephone exchange |
| AU64586/74A AU474937B2 (en) | 1973-01-16 | 1974-01-16 | Attendant board system in telephone exchange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP664873A JPS5331564B2 (enExample) | 1973-01-16 | 1973-01-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4996609A true JPS4996609A (enExample) | 1974-09-12 |
| JPS5331564B2 JPS5331564B2 (enExample) | 1978-09-04 |
Family
ID=11644185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP664873A Expired JPS5331564B2 (enExample) | 1973-01-16 | 1973-01-16 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3967075A (enExample) |
| JP (1) | JPS5331564B2 (enExample) |
| AU (1) | AU474937B2 (enExample) |
| BR (1) | BR7400211D0 (enExample) |
| CA (1) | CA1031062A (enExample) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2813930A (en) * | 1954-12-06 | 1957-11-19 | Gen Dynamics Corp | Termination for two-way trunk circuit |
| US2872528A (en) * | 1957-05-01 | 1959-02-03 | Gen Dynamics Corp | Telephone intercept system |
| DE1275620B (de) * | 1965-04-01 | 1968-08-22 | Siemens Ag | Schaltungsanordnung fuer Fernmeldevermittlungsanlagen, insbesondere Fernsprechvermittlungsanlagen mit Koppelfeldern und Wahlkennzeichenempfangseinrichtungen |
| US3542961A (en) * | 1967-12-20 | 1970-11-24 | Bell Telephone Labor Inc | Call forwarding equipment for operators |
| US3665112A (en) * | 1969-08-25 | 1972-05-23 | North Electric Co | Multi-line telephone set with switching capability |
| US3660600A (en) * | 1970-05-15 | 1972-05-02 | Stromberg Carlson Corp | Path finding system for multi-stage switching matrix |
-
1973
- 1973-01-16 JP JP664873A patent/JPS5331564B2/ja not_active Expired
-
1974
- 1974-01-14 BR BR211/74A patent/BR7400211D0/pt unknown
- 1974-01-15 US US05/433,501 patent/US3967075A/en not_active Expired - Lifetime
- 1974-01-15 CA CA190,138A patent/CA1031062A/en not_active Expired
- 1974-01-16 AU AU64586/74A patent/AU474937B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CA1031062A (en) | 1978-05-09 |
| AU474937B2 (en) | 1976-08-05 |
| BR7400211D0 (pt) | 1974-11-05 |
| AU6458674A (en) | 1975-07-17 |
| US3967075A (en) | 1976-06-29 |
| JPS5331564B2 (enExample) | 1978-09-04 |