NL52642C - - Google Patents
Info
- Publication number
- NL52642C NL52642C NL94905A NL94905A NL52642C NL 52642 C NL52642 C NL 52642C NL 94905 A NL94905 A NL 94905A NL 94905 A NL94905 A NL 94905A NL 52642 C NL52642 C NL 52642C
- Authority
- NL
- Netherlands
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
- H04M15/04—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
- H04M15/38—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)
- Monitoring And Testing Of Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2529038A GB520681A (en) | 1938-08-29 | 1938-08-29 | Improvements in or relating to tariff recording equipment for telecommunication exchange systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL52642C true NL52642C (xx) | 1942-06-15 |
Family
ID=8882846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL94905A NL52642C (xx) | 1938-08-29 | 1939-08-22 |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH236320A (xx) |
| FR (1) | FR858437A (xx) |
| GB (1) | GB520681A (xx) |
| NL (1) | NL52642C (xx) |
-
1938
- 1938-08-29 GB GB2529038A patent/GB520681A/en not_active Expired
-
1939
- 1939-07-28 CH CH236320D patent/CH236320A/fr unknown
- 1939-07-28 FR FR858437D patent/FR858437A/fr not_active Expired
- 1939-08-22 NL NL94905A patent/NL52642C/xx active
Also Published As
| Publication number | Publication date |
|---|---|
| CH236320A (fr) | 1945-01-31 |
| FR858437A (fr) | 1940-11-25 |
| GB520681A (en) | 1940-05-01 |