BE492792A - - Google Patents
Info
- Publication number
- BE492792A BE492792A BE492792DA BE492792A BE 492792 A BE492792 A BE 492792A BE 492792D A BE492792D A BE 492792DA BE 492792 A BE492792 A BE 492792A
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB32648/48A GB654137A (en) | 1948-12-17 | 1948-12-17 | Improvements in or relating to electrical signalling systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE492792A true BE492792A (en]) |
Family
ID=10341903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE492792D BE492792A (en]) | 1948-12-17 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2672519A (en]) |
| BE (1) | BE492792A (en]) |
| DE (1) | DE836047C (en]) |
| GB (1) | GB654137A (en]) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3124656A (en) * | 1964-03-10 | bonanno | ||
| US2963553A (en) * | 1954-03-17 | 1960-12-06 | Douglas L White | System for identifying telephone lines |
| US3035125A (en) * | 1956-04-03 | 1962-05-15 | Gen Dynamics Corp | Digit sending means for telephone systems |
| US2854519A (en) * | 1956-04-18 | 1958-09-30 | Gen Dynamics Corp | Telephone system including line identifying means |
| FR1212783A (fr) * | 1958-07-11 | 1960-03-25 | Constr Telephoniques | Perfectionnements aux dispositifs d'identification |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB358889A (en) * | 1929-07-15 | 1931-10-09 | Ass Telephone & Telegraph Co | Improvements in or relating to electrical signalling systems |
| US2068711A (en) * | 1931-07-10 | 1937-01-26 | Associated Electric Lab Inc | Stock quotation system |
| US2159107A (en) * | 1932-10-17 | 1939-05-23 | Associated Electric Lab Inc | Stock-quotation system |
-
0
- BE BE492792D patent/BE492792A/xx unknown
-
1948
- 1948-12-17 GB GB32648/48A patent/GB654137A/en not_active Expired
-
1949
- 1949-12-08 US US131748A patent/US2672519A/en not_active Expired - Lifetime
- 1949-12-13 DE DEA460A patent/DE836047C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE836047C (de) | 1952-04-07 |
| GB654137A (en) | 1951-06-06 |
| US2672519A (en) | 1954-03-16 |