NL63940C - - Google Patents
Info
- Publication number
- NL63940C NL63940C NL63940DA NL63940C NL 63940 C NL63940 C NL 63940C NL 63940D A NL63940D A NL 63940DA NL 63940 C NL63940 C NL 63940C
- 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
- H04M15/08—Metering calls to called party, i.e. B-party charged for the communication
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5349/40A GB539823A (en) | 1940-03-23 | 1940-03-23 | Improvements in electrical signalling systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL63940C true NL63940C (lt) |
Family
ID=9794429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL63940D NL63940C (lt) | 1940-03-23 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2292977A (lt) |
| BE (1) | BE468235A (lt) |
| DE (1) | DE826019C (lt) |
| FR (1) | FR933091A (lt) |
| GB (1) | GB539823A (lt) |
| NL (1) | NL63940C (lt) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE464041A (lt) * | 1945-03-23 | |||
| BE465859A (lt) * | 1945-06-13 | |||
| BE468507A (lt) * | 1945-06-13 | |||
| GB614177A (en) * | 1946-05-25 | 1948-12-10 | Automatic Telephone & Elect | Improvements in or relating to electrical signalling systems |
| BE473455A (lt) * | 1946-07-25 | |||
| US2600502A (en) * | 1948-04-24 | 1952-06-17 | Bell Telephone Labor Inc | Calling line and private branch exchange line identifier |
| FR1040574A (fr) * | 1950-06-02 | 1953-10-16 | Int Standard Electric Corp | Systèmes de commutation électronique |
-
0
- NL NL63940D patent/NL63940C/xx active
- BE BE468235D patent/BE468235A/xx unknown
-
1940
- 1940-03-23 GB GB5349/40A patent/GB539823A/en not_active Expired
-
1941
- 1941-02-24 US US380226A patent/US2292977A/en not_active Expired - Lifetime
-
1946
- 1946-08-29 FR FR933091D patent/FR933091A/fr not_active Expired
-
1949
- 1949-01-11 DE DEP31347D patent/DE826019C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2292977A (en) | 1942-08-11 |
| DE826019C (de) | 1951-12-27 |
| FR933091A (fr) | 1948-04-09 |
| GB539823A (en) | 1941-09-25 |
| BE468235A (lt) |