CH289854A - Automatic telephone installation. - Google Patents
Automatic telephone installation.Info
- Publication number
- CH289854A CH289854A CH289854DA CH289854A CH 289854 A CH289854 A CH 289854A CH 289854D A CH289854D A CH 289854DA CH 289854 A CH289854 A CH 289854A
- Authority
- CH
- Switzerland
- Prior art keywords
- automatic telephone
- telephone installation
- installation
- automatic
- telephone
- Prior art date
Links
- 238000009434 installation Methods 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0016—Arrangements providing connection between exchanges
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Exchange Systems With Centralized Control (AREA)
- Interface Circuits In Exchanges (AREA)
- Structure Of Telephone Exchanges (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US532141A US2447494A (en) | 1944-04-21 | 1944-04-21 | Telephone register control system |
Publications (1)
Publication Number | Publication Date |
---|---|
CH289854A true CH289854A (en) | 1953-03-31 |
Family
ID=24120527
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH289854D CH289854A (en) | 1944-04-21 | 1947-02-21 | Automatic telephone installation. |
Country Status (3)
Country | Link |
---|---|
US (1) | US2447494A (en) |
CH (1) | CH289854A (en) |
GB (1) | GB628528A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2588685A (en) * | 1939-07-26 | 1952-03-11 | Automatic Elect Lab | Register-sender for automatic telephony |
US2629016A (en) * | 1942-06-27 | 1953-02-17 | Bell Telephone Labor Inc | Automatic toll-ticketing system |
US2604539A (en) * | 1948-04-05 | 1952-07-22 | Standard Telephones Cables Ltd | Automatic telephone switching system |
US2633496A (en) * | 1948-04-05 | 1953-03-31 | Standard Telephones Cables Ltd | Party-line telephone system |
FR1036653A (en) * | 1950-01-27 | 1953-09-10 | Electronic recorder-translator |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1854106A (en) * | 1922-12-22 | 1932-04-12 | Western Electric Co | Automatic telephone system |
US1567072A (en) * | 1924-10-16 | 1925-12-29 | Western Electric Co | Telephone-exchange system |
US1708949A (en) * | 1926-11-29 | 1929-04-16 | Western Electric Co | Telephone system |
-
1944
- 1944-04-21 US US532141A patent/US2447494A/en not_active Expired - Lifetime
-
1945
- 1945-01-26 GB GB2088/45A patent/GB628528A/en not_active Expired
-
1947
- 1947-02-21 CH CH289854D patent/CH289854A/en unknown
Also Published As
Publication number | Publication date |
---|---|
US2447494A (en) | 1948-08-24 |
GB628528A (en) | 1949-08-31 |
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