NL81976C - - Google Patents
Info
- Publication number
- NL81976C NL81976C NL81976DA NL81976C NL 81976 C NL81976 C NL 81976C NL 81976D A NL81976D A NL 81976DA NL 81976 C NL81976 C NL 81976C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
-
- 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
- H04Q3/00—Selecting arrangements
- H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Electrotherapy Devices (AREA)
- Exchange Systems With Centralized Control (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1012090T | 1949-06-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL81976C true NL81976C (xx) |
Family
ID=9570524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL81976D NL81976C (xx) | 1949-06-02 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2561051A (xx) |
| BE (1) | BE496069A (xx) |
| CH (1) | CH298346A (xx) |
| FR (1) | FR1012090A (xx) |
| GB (3) | GB737877A (xx) |
| NL (1) | NL81976C (xx) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL154348B (nl) * | 1949-06-21 | Minnesota Mining & Mfg | Magnetisch registratiemedium. | |
| GB744291A (en) * | 1950-01-16 | 1956-02-01 | Standard Telephones Cables Ltd | Improvements in or relating to electrical communication systems |
| US2732493A (en) * | 1950-11-04 | 1956-01-24 | baker | |
| US2611025A (en) * | 1951-08-01 | 1952-09-16 | Gen Electric | Selective signal transmission system |
| BE521785A (xx) * | 1953-07-30 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL57905C (nl) * | 1941-05-20 | 1946-07-15 | Bell Telephone Manufacturing Co Sa | Telefoonstelsel of soortgelijk stelsel |
| FR882420A (xx) * | 1941-06-10 | 1943-06-18 | ||
| BE477655A (xx) * | 1941-08-15 | |||
| BE473095A (xx) * | 1946-05-17 |
-
0
- NL NL81976D patent/NL81976C/xx active
- BE BE496069D patent/BE496069A/xx unknown
-
1949
- 1949-06-02 FR FR1012090D patent/FR1012090A/fr not_active Expired
-
1950
- 1950-05-05 GB GB2886/52A patent/GB737877A/en not_active Expired
- 1950-05-05 GB GB11161/50A patent/GB737870A/en not_active Expired
- 1950-05-05 GB GB2885/52A patent/GB737876A/en not_active Expired
- 1950-06-02 CH CH298346D patent/CH298346A/de unknown
- 1950-06-12 US US167672A patent/US2561051A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB737870A (en) | 1955-10-05 |
| GB737877A (en) | 1955-10-05 |
| BE496069A (xx) | |
| FR1012090A (fr) | 1952-07-03 |
| GB737876A (en) | 1955-10-05 |
| CH298346A (de) | 1954-04-30 |
| US2561051A (en) | 1951-07-17 |