FR66961E - Multiple electrical switches, especially for telecommunications systems - Google Patents
Multiple electrical switches, especially for telecommunications systemsInfo
- Publication number
- FR66961E FR66961E FR66961DA FR66961E FR 66961 E FR66961 E FR 66961E FR 66961D A FR66961D A FR 66961DA FR 66961 E FR66961 E FR 66961E
- Authority
- FR
- France
- Prior art keywords
- multiple electrical
- electrical switches
- telecommunications systems
- telecommunications
- switches
- 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
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator
- H04M3/64—Arrangements for signalling the number or class of the calling line to the operator
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H67/00—Electrically-operated selector switches
- H01H67/22—Switches without multi-position wipers
- H01H67/26—Co-ordinate-type selector switches not having relays at cross-points but involving mechanical movement, e.g. cross-bar switch, code-bar switch
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Tumbler Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Railway Tracks (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM20188A DE937510C (en) | 1953-09-25 | 1953-09-25 | Switch arrangement based on the crossbar principle |
Publications (1)
Publication Number | Publication Date |
---|---|
FR66961E true FR66961E (en) | 1957-11-04 |
Family
ID=6654750
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1101161D Expired FR1101161A (en) | 1953-09-25 | 1949-05-17 | Multiple electrical switches, especially for telecommunications systems |
FR66961D Expired FR66961E (en) | 1953-09-25 | 1954-09-24 | Multiple electrical switches, especially for telecommunications systems |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1101161D Expired FR1101161A (en) | 1953-09-25 | 1949-05-17 | Multiple electrical switches, especially for telecommunications systems |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE937510C (en) |
FR (2) | FR1101161A (en) |
GB (1) | GB752622A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1541791A (en) * | 1967-08-31 | 1968-10-11 | Coordinate Selector Switch Improvements |
-
1949
- 1949-05-17 FR FR1101161D patent/FR1101161A/en not_active Expired
-
1953
- 1953-09-25 DE DEM20188A patent/DE937510C/en not_active Expired
-
1954
- 1954-09-17 GB GB27007/54A patent/GB752622A/en not_active Expired
- 1954-09-24 FR FR66961D patent/FR66961E/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE937510C (en) | 1956-01-05 |
FR1101161A (en) | 1955-10-04 |
GB752622A (en) | 1956-07-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR1116827A (en) | Improvements to switching networks, especially for telephone systems | |
FR66961E (en) | Multiple electrical switches, especially for telecommunications systems | |
CA491285A (en) | Electrical service racks | |
CA498170A (en) | Telegraph switching system | |
FR1095948A (en) | Switching circuit for automatic telephone systems | |
CA495174A (en) | Electrical signalling systems | |
CA498919A (en) | Teletypewriter switching system | |
CA496550A (en) | Telephone switching system | |
CA497327A (en) | Telecommunication systems | |
CA494844A (en) | Switching system | |
CA496169A (en) | Electric signalling systems | |
CA490790A (en) | Electric signalling systems | |
CA490688A (en) | Electric signalling systems | |
CA492291A (en) | Electric signalling systems | |
CA498130A (en) | Electrical selective signalling systems | |
CA492098A (en) | Electrical selective signalling systems | |
CA496494A (en) | Biasing potential switching system | |
CA492488A (en) | Electrical communication systems | |
CA493918A (en) | Electrical communication systems | |
FR1117120A (en) | Circuit breaker control systems | |
CA493576A (en) | Electrical relay systems | |
CA493231A (en) | Electrical system | |
CA497228A (en) | Electrical system | |
CA496860A (en) | Electrical system | |
CA495083A (en) | Electrical system |