FR947901A - Systèmes téléphoniques automatiques ou analogues - Google Patents
Systèmes téléphoniques automatiques ou analoguesInfo
- Publication number
- FR947901A FR947901A FR947901DA FR947901A FR 947901 A FR947901 A FR 947901A FR 947901D A FR947901D A FR 947901DA FR 947901 A FR947901 A FR 947901A
- Authority
- FR
- France
- Prior art keywords
- automatic
- telephone systems
- similar telephone
- similar
- systems
- 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
- H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL279119X | 1946-01-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR947901A true FR947901A (fr) | 1949-07-18 |
Family
ID=19782230
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR947901D Expired FR947901A (fr) | 1946-01-30 | 1947-06-13 | Systèmes téléphoniques automatiques ou analogues |
Country Status (5)
Country | Link |
---|---|
US (1) | US2582967A (fr) |
BE (1) | BE474194A (fr) |
CH (1) | CH279119A (fr) |
FR (1) | FR947901A (fr) |
NL (1) | NL65863C (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2790031A (en) * | 1953-05-04 | 1957-04-23 | Gen Telephone Lab Inc | Circuits for rotary selector and connector switches |
US2810788A (en) * | 1953-05-11 | 1957-10-22 | Gen Telephone Lab Inc | Telephone system using single-motion numerical switches |
DE1049924B (de) * | 1958-03-11 | 1959-02-05 | Siemens & Halske Aktiengesellschaft, Berlin und München | Schaltungsanordnung für mit Sammelanschlüssen versehene Leitungswähler, welche durch Markiereinrichtungen eingestellt werden, in Fernmelde-, insbesondere Fernsprechanlagen |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1343903A (en) * | 1920-06-22 | Telephone -system | ||
GB341045A (en) * | 1929-10-09 | 1931-01-09 | Charles Edward Stevens | Improvements in or relating to switching arrangements for automatic and semi-automatic telephone systems |
GB343460A (en) * | 1929-11-15 | 1931-02-16 | William Hatton | Improvements in or relating to automatic or semi-automatic telephone exchange systems |
GB355924A (en) * | 1930-08-07 | 1931-09-03 | Siemens Brothers & Co Ltd | Improvements relating to automatic telephone systems |
FR744372A (fr) * | 1931-11-09 | 1933-04-19 | ||
GB392280A (en) * | 1932-01-13 | 1933-05-18 | Siemens Brothers & Co Ltd | Improvements relating to automatic telephone systems |
US2057890A (en) * | 1934-05-09 | 1936-10-20 | Siemens Ag | Telephone system |
GB437766A (en) * | 1934-08-18 | 1935-11-05 | Siemens Brothers & Co Ltd | Improvements relating to electric selective systems |
GB451512A (en) * | 1935-02-06 | 1936-08-06 | Automatic Electric Co Ltd | Improvements in or relating to telephone systems |
FR811704A (fr) * | 1936-12-15 | 1937-04-21 | Materiel Telephonique | Perfectionnements aux systèmes téléphoniques automatiques ou analogues |
GB563668A (en) * | 1943-03-15 | 1944-08-24 | Pascall Engineering Company Lt | Improvements in apparatus for the fine grinding and mixing of pastes and similar substances |
NL69491C (fr) * | 1943-05-06 |
-
0
- BE BE474194D patent/BE474194A/xx unknown
- NL NL65863D patent/NL65863C/xx active
-
1947
- 1947-05-03 CH CH279119D patent/CH279119A/fr unknown
- 1947-06-13 FR FR947901D patent/FR947901A/fr not_active Expired
- 1947-07-01 US US758451A patent/US2582967A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
BE474194A (fr) | |
US2582967A (en) | 1952-01-22 |
NL65863C (fr) | |
CH279119A (fr) | 1951-11-15 |
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