CH266247A - Automatic telephony installation. - Google Patents
Automatic telephony installation.Info
- Publication number
- CH266247A CH266247A CH266247DA CH266247A CH 266247 A CH266247 A CH 266247A CH 266247D A CH266247D A CH 266247DA CH 266247 A CH266247 A CH 266247A
- Authority
- CH
- Switzerland
- Prior art keywords
- automatic telephony
- telephony installation
- installation
- automatic
- telephony
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US266247XA | 1940-05-22 | 1940-05-22 | |
FR2471415X | 1940-05-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH266247A true CH266247A (en) | 1950-01-15 |
Family
ID=32232297
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH266247D CH266247A (en) | 1940-05-22 | 1946-11-22 | Automatic telephony installation. |
Country Status (2)
Country | Link |
---|---|
US (1) | US2471415A (en) |
CH (1) | CH266247A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2576097A (en) * | 1945-07-23 | 1951-11-27 | Int Standard Electric Corp | Automatic telephone selective switching system |
US2604540A (en) * | 1949-09-13 | 1952-07-22 | Bell Telephone Labor Inc | Calling line identification for automatic ticketing systems |
US2697140A (en) * | 1949-12-20 | 1954-12-14 | Bell Telephone Labor Inc | Electronic testing system |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2242776A (en) * | 1939-04-25 | 1941-05-20 | Bell Telephone Labor Inc | Telephone system |
NL57724C (en) * | 1939-07-24 |
-
1943
- 1943-04-30 US US485262A patent/US2471415A/en not_active Expired - Lifetime
-
1946
- 1946-11-22 CH CH266247D patent/CH266247A/en unknown
Also Published As
Publication number | Publication date |
---|---|
US2471415A (en) | 1949-05-31 |
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