CH279787A - Selection device for telecommunications installation. - Google Patents
Selection device for telecommunications installation.Info
- Publication number
- CH279787A CH279787A CH279787DA CH279787A CH 279787 A CH279787 A CH 279787A CH 279787D A CH279787D A CH 279787DA CH 279787 A CH279787 A CH 279787A
- Authority
- CH
- Switzerland
- Prior art keywords
- selection device
- telecommunications installation
- telecommunications
- installation
- selection
- Prior art date
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)
- Interface Circuits In Exchanges (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US491628A US2376346A (en) | 1943-06-21 | 1943-06-21 | Telecommunication system |
Publications (1)
Publication Number | Publication Date |
---|---|
CH279787A true CH279787A (en) | 1951-12-15 |
Family
ID=23953005
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH279787D CH279787A (en) | 1943-06-21 | 1947-03-25 | Selection device for telecommunications installation. |
Country Status (3)
Country | Link |
---|---|
US (1) | US2376346A (en) |
CH (1) | CH279787A (en) |
GB (1) | GB600458A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2567190A (en) * | 1945-05-14 | 1951-09-11 | Int Standard Electric Corp | Telephone exchange system |
NL74858C (en) * | 1945-11-06 | |||
NL141861B (en) * | 1948-08-12 | Murphy Chemical Ltd | PROCESS FOR PREPARING ESTERS OF 2,6-DINITRO-4-ALKYLPHENOL AND OF PREPARATIONS CONTAINING THESE ESTERS. | |
US2697752A (en) * | 1950-10-12 | 1954-12-21 | Hartford Nat Bank & Trust Co | Device for testing characterizing impedances |
US2831061A (en) * | 1952-08-02 | 1958-04-15 | Int Standard Electric Corp | Circuit arrangement for transmitting signal over telephone lines |
US5649158A (en) * | 1995-02-23 | 1997-07-15 | International Business Machines Corporation | Method for incrementally archiving primary storage to archive storage by utilizing both a partition archive status array and a partition map |
-
1943
- 1943-06-21 US US491628A patent/US2376346A/en not_active Expired - Lifetime
-
1944
- 1944-04-28 GB GB7992/44A patent/GB600458A/en not_active Expired
-
1947
- 1947-03-25 CH CH279787D patent/CH279787A/en unknown
Also Published As
Publication number | Publication date |
---|---|
GB600458A (en) | 1948-04-09 |
US2376346A (en) | 1945-05-22 |
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