ES179633A1 - Mejoras en o relativas a sistemas de centrales de telecomunicación - Google Patents
Mejoras en o relativas a sistemas de centrales de telecomunicaciónInfo
- Publication number
- ES179633A1 ES179633A1 ES179633A ES179633A ES179633A1 ES 179633 A1 ES179633 A1 ES 179633A1 ES 179633 A ES179633 A ES 179633A ES 179633 A ES179633 A ES 179633A ES 179633 A1 ES179633 A1 ES 179633A1
- Authority
- ES
- Spain
- Prior art keywords
- telecommunication
- plants
- systems
- telecommunication plants
- 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
- H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
- H04M15/38—Charging, billing or metering by apparatus other than mechanical step-by-step counter type
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Meter Arrangements (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2298039A GB536575A (en) | 1939-08-09 | 1939-08-09 | Improvements in or relating to telecommunication systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES179633A1 true ES179633A1 (es) | 1947-10-16 |
Family
ID=10188151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES179633A Expired ES179633A1 (es) | 1939-08-09 | 1947-09-08 | Mejoras en o relativas a sistemas de centrales de telecomunicación |
Country Status (2)
| Country | Link |
|---|---|
| ES (1) | ES179633A1 (es) |
| GB (1) | GB536575A (es) |
-
1939
- 1939-08-09 GB GB2298039A patent/GB536575A/en not_active Expired
-
1947
- 1947-09-08 ES ES179633A patent/ES179633A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB536575A (en) | 1941-05-20 |
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