BE468507A - - Google Patents
Info
- Publication number
- BE468507A BE468507A BE468507DA BE468507A BE 468507 A BE468507 A BE 468507A BE 468507D A BE468507D A BE 468507DA BE 468507 A BE468507 A BE 468507A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/02—Constructional details
-
- 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)
- Structure Of Telephone Exchanges (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1494845A GB593779A (en) | 1945-06-13 | Improvements in electrical signalling systems and apparatus for use therein |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE468507A true BE468507A (en:Method) |
Family
ID=10050367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE468507D BE468507A (en:Method) | 1945-06-13 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2598097A (en:Method) |
| BE (1) | BE468507A (en:Method) |
| DE (1) | DE830359C (en:Method) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US329646A (en) * | 1885-11-03 | Telephone call-register | ||
| US1053242A (en) * | 1909-11-12 | 1913-02-18 | Safety Car Heating & Lighting | Resistance device. |
| US1471391A (en) * | 1921-05-27 | 1923-10-23 | Jeffrey Mfg Co | Rheostat |
| US1952679A (en) * | 1929-09-18 | 1934-03-27 | Warner Electric Brake Corp | Rheostat |
| US2143414A (en) * | 1934-08-25 | 1939-01-10 | Bell Telephone Labor Inc | Electrical device |
| US2137423A (en) * | 1934-11-23 | 1938-11-22 | Ass Telephone & Telegraph Co | Automatic switch |
| US2254366A (en) * | 1936-07-18 | 1941-09-02 | Hammond Laurens | Variable impedance |
| US2228405A (en) * | 1937-04-26 | 1941-01-14 | Ass Telephone & Telegraph Co | Control circuit for electromagnetic devices |
| GB529025A (en) * | 1939-05-05 | 1940-11-12 | Automatic Telephone & Elect | Improvements in or relating to telephone systems |
| BE468235A (en:Method) * | 1940-03-23 | |||
| BE465283A (en:Method) * | 1942-01-19 |
-
0
- BE BE468507D patent/BE468507A/xx unknown
-
1946
- 1946-04-26 US US665020A patent/US2598097A/en not_active Expired - Lifetime
-
1948
- 1948-12-25 DE DEP26892A patent/DE830359C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE830359C (de) | 1952-02-04 |
| US2598097A (en) | 1952-05-27 |