ES166712A1 - A TELEPHONE OR SIMILAR SIGNAL SYSTEM - Google Patents
A TELEPHONE OR SIMILAR SIGNAL SYSTEMInfo
- Publication number
- ES166712A1 ES166712A1 ES0166712A ES166712A ES166712A1 ES 166712 A1 ES166712 A1 ES 166712A1 ES 0166712 A ES0166712 A ES 0166712A ES 166712 A ES166712 A ES 166712A ES 166712 A1 ES166712 A1 ES 166712A1
- Authority
- ES
- Spain
- Prior art keywords
- telephone
- signal system
- similar signal
- automatic
- central point
- 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
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
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/12—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in shaft furnaces
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Devices For Supply Of Signal Current (AREA)
- Interface Circuits In Exchanges (AREA)
Abstract
Sistema de señales telefónico o similar y especialmente un sistema telefónico automático que tiene conexiones montadas sobre interruptores automáticos colocados en un punto central en el que el equipo en este punto central está dispuesto para obrar conjuntamente con un interruptor automático para permitir que éste durante su funcionamiento retransmita a la parte que llama una señal acústica que indique la identidad de la línea con que está asociado en todo momento.Telephone or similar signaling system and especially an automatic telephone system having connections mounted on automatic switches located at a central point in which the equipment at this central point is arranged to co-operate with an automatic switch to enable the latter during operation to retransmit to the calling party an acoustic signal indicating the identity of the line with which it is associated at all times.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB11075/43A GB566779A (en) | 1943-07-08 | 1943-07-08 | Improvements in electrical signalling systems |
Publications (1)
Publication Number | Publication Date |
---|---|
ES166712A1 true ES166712A1 (en) | 1944-08-16 |
Family
ID=9979556
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES0166712A Expired ES166712A1 (en) | 1943-07-08 | 1944-06-30 | A TELEPHONE OR SIMILAR SIGNAL SYSTEM |
Country Status (5)
Country | Link |
---|---|
US (1) | US2421169A (en) |
ES (1) | ES166712A1 (en) |
FR (1) | FR932188A (en) |
GB (1) | GB566779A (en) |
NL (1) | NL63260C (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB575312A (en) * | 1944-01-12 | 1946-02-12 | Automatic Telephone & Elect | Improvements in or relating to telephone systems |
US2623164A (en) * | 1948-11-01 | 1952-12-23 | Automatic Elect Lab | Single channel, single frequency, mobile radio telephone system |
US2740841A (en) * | 1953-01-16 | 1956-04-03 | Itt | Automatic rural crossbar switching system |
US3234514A (en) * | 1958-12-12 | 1966-02-08 | Int Standard Electric Corp | Electric pulse signalling system having switching means connected to a constant-voltage source |
DE1762060A1 (en) * | 1967-03-31 | 1970-04-30 | Nippon Electric Co | Inter-trunk dialing system for a telephone switched network |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1137223A (en) * | 1914-03-02 | 1915-04-27 | Western Electric Co | Machine telephone switching system. |
US1367583A (en) * | 1918-04-02 | 1921-02-08 | Bornett L Bobroff | System for signaling |
US1600358A (en) * | 1923-12-27 | 1926-09-21 | Coventry Autom Telephones Ltd | Remote-control system |
US1778077A (en) * | 1924-10-11 | 1930-10-14 | American Telephone & Telegraph | Remote-control system |
-
0
- NL NL63260D patent/NL63260C/xx active
-
1943
- 1943-07-08 GB GB11075/43A patent/GB566779A/en not_active Expired
-
1944
- 1944-05-27 US US537564A patent/US2421169A/en not_active Expired - Lifetime
- 1944-06-30 ES ES0166712A patent/ES166712A1/en not_active Expired
-
1946
- 1946-08-12 FR FR932188D patent/FR932188A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2421169A (en) | 1947-05-27 |
NL63260C (en) | |
GB566779A (en) | 1945-01-12 |
FR932188A (en) | 1948-03-15 |
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