BE473684A - - Google Patents
Info
- Publication number
- BE473684A BE473684A BE473684DA BE473684A BE 473684 A BE473684 A BE 473684A BE 473684D A BE473684D A BE 473684DA BE 473684 A BE473684 A BE 473684A
- Authority
- BE
- Belgium
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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Telephonic Communication Services (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US46964142 US2387897A (en) | 1942-12-21 | 1942-12-21 | Line detecting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE473684A true BE473684A (en:Method) | 1900-01-01 |
Family
ID=23864531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE473684D BE473684A (en:Method) | 1942-12-21 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2387897A (en:Method) |
| BE (1) | BE473684A (en:Method) |
| GB (1) | GB568229A (en:Method) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE465859A (en:Method) * | 1945-06-13 | |||
| US2535513A (en) * | 1946-02-23 | 1950-12-26 | Automatic Elect Lab | Testing device for line identifying equipment |
| BE473455A (en:Method) * | 1946-07-25 | |||
| US2532750A (en) * | 1946-08-03 | 1950-12-05 | Automatic Telephone & Elect | Calling line identifier having display device at operator's position |
| US2508026A (en) * | 1947-11-24 | 1950-05-16 | Bell Telephone Labor Inc | Calling-line identification system |
| US2672518A (en) * | 1949-05-28 | 1954-03-16 | Bell Telephone Labor Inc | Station identifier |
| US2615987A (en) * | 1949-08-25 | 1952-10-28 | Bell Telephone Labor Inc | Calling line identification system |
| US2604540A (en) * | 1949-09-13 | 1952-07-22 | Bell Telephone Labor Inc | Calling line identification for automatic ticketing systems |
| US2908758A (en) * | 1952-09-11 | 1959-10-13 | Gen Telephone Lab Inc | Toll ticketing telephone systems |
| US2905764A (en) * | 1953-07-15 | 1959-09-22 | North Electric Co | Automatic telephone system |
| US2876286A (en) * | 1953-09-10 | 1959-03-03 | Roelof M M Oberman | Arrangement for the identification of special service apparatus required for connections in a telecommunication system |
| US2851530A (en) * | 1953-11-19 | 1958-09-09 | Gen Dynamies Corp | Message register |
| US2857470A (en) * | 1956-05-02 | 1958-10-21 | Gen Telephone Lab Inc | Transistor line identifier |
-
0
- BE BE473684D patent/BE473684A/xx unknown
- GB GB568229D patent/GB568229A/en not_active Expired
-
1942
- 1942-12-21 US US46964142 patent/US2387897A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2387897A (en) | 1945-10-30 |
| GB568229A (en:Method) | 1900-01-01 |