BE464785A - - Google Patents
Info
- Publication number
- BE464785A BE464785A BE464785DA BE464785A BE 464785 A BE464785 A BE 464785A BE 464785D A BE464785D A BE 464785DA BE 464785 A BE464785 A BE 464785A
- 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
- H04M15/04—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
- H04M15/10—Metering calls from calling party, i.e. A-party charged for the communication
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Meter Arrangements (AREA)
- Radio Relay Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB21780/39A GB531581A (en) | 1939-07-26 | 1939-07-26 | Improvements in or relating to automatic or semi-automatic telephone systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE464785A true BE464785A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Family
ID=10168672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE464785D BE464785A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1939-07-26 |
Country Status (3)
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2956127A (en) * | 1954-12-08 | 1960-10-11 | North Electric Co | Automatic telephone system |
| US4294498A (en) * | 1979-10-17 | 1981-10-13 | Luit Richard D Van | Wall cabinet and method of making |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2305779A (en) * | 1936-04-18 | 1942-12-22 | Hebel Martin | Telephone charging device |
| NL54049C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1938-01-25 | |||
| US2253596A (en) * | 1938-04-01 | 1941-08-26 | Western Electric Co | Electrical calculating equipment for telephone systems |
| US2273165A (en) * | 1938-04-06 | 1942-02-17 | Western Electric Co | Tariff determining equipment for telephone systems |
| US2272475A (en) * | 1938-06-14 | 1942-02-10 | Associated Electric Lab Inc | Telephone system |
| GB516416A (en) * | 1938-06-14 | 1940-01-01 | Ass Telephone & Telegraph Co | Improvements in or relating to automatic or semi-automatic telephone systems |
| ES2359204B1 (es) * | 2009-11-09 | 2012-03-26 | Universitat Rovira I Virgili | Dispositivo para la detección selectiva de gas benceno, procedimiento para su obtención y detección del gas con el mismo. |
-
0
- BE BE464785D patent/BE464785A/xx unknown
-
1939
- 1939-07-26 GB GB21780/39A patent/GB531581A/en not_active Expired
-
1947
- 1947-04-25 US US743963A patent/US2588684A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB531581A (en) | 1941-01-07 |
| US2588684A (en) | 1952-03-11 |