FR969200A - Réseau téléphonique à centraux automatiques collectifs - Google Patents
Réseau téléphonique à centraux automatiques collectifsInfo
- Publication number
- FR969200A FR969200A FR969200DA FR969200A FR 969200 A FR969200 A FR 969200A FR 969200D A FR969200D A FR 969200DA FR 969200 A FR969200 A FR 969200A
- Authority
- FR
- France
- Prior art keywords
- telephone network
- automatic exchanges
- collective automatic
- collective
- exchanges
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
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)
- Interface Circuits In Exchanges (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Telephonic Communication Services (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US762715A US2607854A (en) | 1947-07-22 | 1947-07-22 | Automatic toll telephone system |
US115723A US2579721A (en) | 1947-07-22 | 1949-09-14 | Community automatic exchange network |
US137303A US2614173A (en) | 1947-07-22 | 1950-01-07 | Trunk circuit repeater |
US154356A US2632813A (en) | 1947-07-22 | 1950-04-06 | Community automatic exchange networks |
Publications (1)
Publication Number | Publication Date |
---|---|
FR969200A true FR969200A (fr) | 1950-12-15 |
Family
ID=27494034
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR969200D Expired FR969200A (fr) | 1947-07-22 | 1948-07-15 | Réseau téléphonique à centraux automatiques collectifs |
Country Status (3)
Country | Link |
---|---|
US (4) | US2607854A (fr) |
FR (1) | FR969200A (fr) |
GB (2) | GB687397A (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2851535A (en) * | 1950-08-16 | 1958-09-09 | Gen Telephone Lab Inc | Multi-exchange relay automatic telephone system |
US2659771A (en) * | 1950-08-25 | 1953-11-17 | Automatic Elect Lab | Automatic switch for telephone systems |
US2725429A (en) * | 1952-04-12 | 1955-11-29 | Gen Dynamics Corp | Signaling system |
US2726285A (en) * | 1952-09-06 | 1955-12-06 | Gen Dynamics Corp | Dial cord circuit |
US2703342A (en) * | 1952-10-15 | 1955-03-01 | Stromberg Carlson Co | Transmission of control signals in a telecommunication system |
US2765369A (en) * | 1953-04-28 | 1956-10-02 | Gen Dynamics Corp | Guarding circuit for telephone systems |
US2792451A (en) * | 1953-09-22 | 1957-05-14 | Gen Dynamics Corp | Telephone system |
US2804713A (en) * | 1955-05-04 | 1957-09-03 | Walter A Johnson | Fishing device |
US3003040A (en) * | 1956-01-25 | 1961-10-03 | Gen Dynamics Corp | Modified trunk circuit |
US3019299A (en) * | 1959-08-26 | 1962-01-30 | Automatic Elect Lab | Switching selector repeater |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1542847A (en) * | 1925-06-23 | Signaling system | ||
US1475201A (en) * | 1923-11-27 | Network hz | ||
US1658829A (en) * | 1926-08-30 | 1928-02-14 | Western Electric Co | Telephone system |
US1813007A (en) * | 1930-08-23 | 1931-07-07 | Reserve Holding Co | Automatic telephone system |
US1901177A (en) * | 1932-03-31 | 1933-03-14 | Associated Electric Lab Inc | Multioffice telephone system |
USRE19695E (en) * | 1932-07-01 | 1935-09-10 | Telephone system | |
US2297092A (en) * | 1938-09-26 | 1942-09-29 | Associated Electric Lab Inc | Telephone system |
US2287383A (en) * | 1940-04-22 | 1942-06-23 | Associated Electric Lab Inc | Telephone system |
USRE22475E (en) * | 1940-06-22 | 1944-05-09 | Telephone system | |
US2249067A (en) * | 1940-06-22 | 1941-07-15 | Bell Telephone Labor Inc | Telephone system |
US2295372A (en) * | 1940-08-03 | 1942-09-08 | Associated Electric Lab Inc | Telephone system |
BE468834A (fr) * | 1940-08-06 | |||
GB542546A (en) * | 1940-11-01 | 1942-01-14 | Siemens Brothers & Co Ltd | Improvements relating to automatic telephone and like selective systems |
BE467165A (fr) * | 1941-10-31 | |||
US2427650A (en) * | 1942-05-04 | 1947-09-23 | Kellogg Switchboard & Supply | Multiexchange community automatic telephone system |
BE467333A (fr) * | 1942-07-28 | |||
US2409164A (en) * | 1942-11-10 | 1946-10-08 | Automatic Elect Lab | Telephone system |
US2367634A (en) * | 1942-12-04 | 1945-01-16 | Automatic Elect Lab | Telephone system |
US2359625A (en) * | 1943-01-18 | 1944-10-03 | Automatic Elect Lab | Telephone system |
US2358013A (en) * | 1943-02-01 | 1944-09-12 | Automatic Elect Lab | Telephone system |
US2397829A (en) * | 1944-09-26 | 1946-04-02 | American Telephone & Telegraph | Telephone system |
US2415057A (en) * | 1945-02-09 | 1947-01-28 | Automatic Elect Lab | Telephone system |
US2491291A (en) * | 1945-12-03 | 1949-12-13 | Automatic Elect Lab | Common trunk selecting means for all relay telephone switches |
-
1947
- 1947-07-22 US US762715A patent/US2607854A/en not_active Expired - Lifetime
-
1948
- 1948-07-14 GB GB19367/51A patent/GB687397A/en not_active Expired
- 1948-07-14 GB GB18938/48A patent/GB687343A/en not_active Expired
- 1948-07-15 FR FR969200D patent/FR969200A/fr not_active Expired
-
1949
- 1949-09-14 US US115723A patent/US2579721A/en not_active Expired - Lifetime
-
1950
- 1950-01-07 US US137303A patent/US2614173A/en not_active Expired - Lifetime
- 1950-04-06 US US154356A patent/US2632813A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB687397A (en) | 1953-02-11 |
GB687343A (en) | 1953-02-11 |
US2579721A (en) | 1951-12-25 |
US2614173A (en) | 1952-10-14 |
US2632813A (en) | 1953-03-24 |
US2607854A (en) | 1952-08-19 |
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