FR1074036A - Perfectionnement aux installations de télécommunication - Google Patents
Perfectionnement aux installations de télécommunicationInfo
- Publication number
- FR1074036A FR1074036A FR1074036DA FR1074036A FR 1074036 A FR1074036 A FR 1074036A FR 1074036D A FR1074036D A FR 1074036DA FR 1074036 A FR1074036 A FR 1074036A
- Authority
- FR
- France
- Prior art keywords
- further training
- telecommunications facilities
- telecommunications
- facilities
- training
- 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
- H04Q3/0004—Selecting arrangements using crossbar selectors in the switching stages
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Interface Circuits In Exchanges (AREA)
- Telephonic Communication Services (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2191/52A GB741545A (en) | 1952-01-26 | 1952-01-26 | Improvements in or relating to automatic telephone exchange systems |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1074036A true FR1074036A (fr) | 1954-09-30 |
Family
ID=9735183
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1074036D Expired FR1074036A (fr) | 1952-01-26 | 1953-01-22 | Perfectionnement aux installations de télécommunication |
Country Status (6)
Country | Link |
---|---|
US (1) | US2761012A (fr) |
BE (1) | BE517178A (fr) |
DE (1) | DE964685C (fr) |
FR (1) | FR1074036A (fr) |
GB (2) | GB741589A (fr) |
NL (2) | NL175544B (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2960575A (en) * | 1952-04-10 | 1960-11-15 | Int Standard Electric Corp | Automatic telecommunication systems |
FR1058491A (fr) * | 1952-06-18 | 1954-03-16 | Constr Telephoniques | Perfectionnements aux systèmes téléphoniques automatiques |
US3007008A (en) * | 1955-07-15 | 1961-10-31 | North Electric Co | Automatic telephone system |
GB822409A (en) * | 1956-06-14 | 1959-10-28 | Siemens Edison Swan Ltd | Improvements relating to automatic switching systems |
NL220430A (fr) * | 1956-12-07 | |||
NL252009A (fr) * | 1958-01-15 | |||
GB890235A (fr) * | 1959-05-09 | 1900-01-01 | ||
GB983507A (en) * | 1961-09-20 | 1965-02-17 | Automatic Telephone & Elect | Improvements in or relating to crossbar switches for use in automatic telephone systems |
DE1266261B (de) * | 1965-05-20 | 1968-04-18 | Paurat F | Stempel aus Holz fuer den Ausbau von Untertage-Raeumen, insbesondere fuer den Streckenausbau |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2326458A (en) * | 1942-02-17 | 1943-08-10 | Bell Telephone Labor Inc | Selection system |
NL143044B (nl) * | 1947-10-29 | Matsushita Electric Ind Co Ltd | Tijdbasisstelsel voor een elektronenstraalbuis. | |
US2609454A (en) * | 1948-06-29 | 1952-09-02 | Bell Telephone Labor Inc | Selecting and lockout circuit |
US2681386A (en) * | 1948-07-13 | 1954-06-15 | Automatic Telephone & Elect | Electrical signaling system using nonlinear resistors for control |
-
0
- NL NL89659D patent/NL89659C/xx active
- BE BE517178D patent/BE517178A/xx unknown
- NL NLAANVRAGE7311497,A patent/NL175544B/xx unknown
-
1952
- 1952-01-26 GB GB13998/54A patent/GB741589A/en not_active Expired
- 1952-01-26 GB GB2191/52A patent/GB741545A/en not_active Expired
-
1953
- 1953-01-19 US US331921A patent/US2761012A/en not_active Expired - Lifetime
- 1953-01-22 FR FR1074036D patent/FR1074036A/fr not_active Expired
- 1953-01-24 DE DEA20055A patent/DE964685C/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB741589A (en) | 1955-12-07 |
NL89659C (fr) | |
GB741545A (en) | 1955-12-07 |
BE517178A (fr) | |
NL175544B (nl) | |
DE964685C (de) | 1957-05-29 |
US2761012A (en) | 1956-08-28 |
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