ES179632A1 - Mejora en o relativas a sistemas de centrales de telecomunicación - Google Patents
Mejora en o relativas a sistemas de centrales de telecomunicaciónInfo
- Publication number
- ES179632A1 ES179632A1 ES179632A ES179632A ES179632A1 ES 179632 A1 ES179632 A1 ES 179632A1 ES 179632 A ES179632 A ES 179632A ES 179632 A ES179632 A ES 179632A ES 179632 A1 ES179632 A1 ES 179632A1
- Authority
- ES
- Spain
- Prior art keywords
- relating
- improvement
- central systems
- telecommunication central
- telecommunication
- 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
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
- H04M15/04—Recording calls, or communications in printed, perforated or other permanent form
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
- H04M15/08—Metering calls to called party, i.e. B-party charged for the communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator
- H04M3/62—Keyboard equipment
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator
- H04M3/64—Arrangements for signalling the number or class of the calling line to the operator
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0016—Arrangements providing connection between exchanges
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Telephonic Communication Services (AREA)
- Meter Arrangements (AREA)
- Exchange Systems With Centralized Control (AREA)
- Selective Calling Equipment (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB285306X | 1946-03-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES179632A1 true ES179632A1 (es) | 1947-10-16 |
Family
ID=10277091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES179632A Expired ES179632A1 (es) | 1946-03-09 | 1947-09-08 | Mejora en o relativas a sistemas de centrales de telecomunicación |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2633501A (es) |
| BE (4) | BE476048A (es) |
| CH (4) | CH285306A (es) |
| ES (1) | ES179632A1 (es) |
| FR (4) | FR57780E (es) |
| GB (4) | GB642541A (es) |
| NL (2) | NL72119C (es) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1013410B (de) * | 1954-02-03 | 1957-08-08 | Ver Leichtmetallwerke Gmbh | Eckverbindung fuer Hohlprofile, insbesondere fuer Fenster- und Tuerrahmen |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1883589A (en) * | 1930-12-18 | 1932-10-18 | Associated Electric Lab Inc | Telephone system |
| US2382893A (en) * | 1944-08-18 | 1945-08-14 | Bell Telephone Labor Inc | Telephone system |
-
0
- BE BE476939D patent/BE476939A/xx unknown
- BE BE476759D patent/BE476759A/xx unknown
- BE BE480488D patent/BE480488A/xx unknown
- BE BE476048D patent/BE476048A/xx unknown
- NL NL75429D patent/NL75429C/xx active
- FR FR962115D patent/FR962115A/fr not_active Expired
- NL NL72119D patent/NL72119C/xx active
-
1946
- 1946-03-09 GB GB9407/47A patent/GB642541A/en not_active Expired
- 1946-03-09 GB GB7405/46A patent/GB642527A/en not_active Expired
- 1946-03-09 GB GB9408/47A patent/GB642542A/en not_active Expired
- 1946-03-09 GB GB7046/46A patent/GB642528A/en not_active Expired
-
1947
- 1947-08-06 US US766636A patent/US2633501A/en not_active Expired - Lifetime
- 1947-08-12 CH CH285306D patent/CH285306A/fr unknown
- 1947-08-12 CH CH291943D patent/CH291943A/fr unknown
- 1947-08-16 CH CH289546D patent/CH289546A/fr unknown
- 1947-09-08 ES ES179632A patent/ES179632A1/es not_active Expired
- 1947-10-11 FR FR57780D patent/FR57780E/fr not_active Expired
- 1947-10-17 CH CH296198D patent/CH296198A/fr unknown
- 1947-10-17 FR FR66206D patent/FR66206E/fr not_active Expired
- 1947-10-23 FR FR66301D patent/FR66301E/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH289546A (fr) | 1953-03-15 |
| FR66301E (fr) | 1956-06-29 |
| BE480488A (es) | |
| GB642541A (en) | 1950-09-06 |
| NL75429C (es) | |
| GB642528A (en) | 1950-09-06 |
| BE476048A (es) | |
| BE476939A (es) | |
| US2633501A (en) | 1953-03-31 |
| FR66206E (fr) | 1956-06-05 |
| FR57780E (fr) | 1953-09-09 |
| CH296198A (fr) | 1954-01-31 |
| BE476759A (es) | |
| NL72119C (es) | |
| GB642527A (en) | 1950-09-06 |
| GB642542A (en) | 1950-09-06 |
| CH285306A (fr) | 1952-08-31 |
| CH291943A (fr) | 1953-07-15 |
| FR962115A (es) | 1950-06-02 |
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