GB685205A - Improvements in circuits for embodiment in automatic telephone exchange and like systems - Google Patents
Improvements in circuits for embodiment in automatic telephone exchange and like systemsInfo
- Publication number
- GB685205A GB685205A GB10351/49A GB1035149A GB685205A GB 685205 A GB685205 A GB 685205A GB 10351/49 A GB10351/49 A GB 10351/49A GB 1035149 A GB1035149 A GB 1035149A GB 685205 A GB685205 A GB 685205A
- Authority
- GB
- United Kingdom
- Prior art keywords
- finders
- relay
- circuit
- finder
- indirect
- 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
- 239000003550 marker Substances 0.000 abstract 4
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Interface Circuits In Exchanges (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL278141X | 1948-04-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB685205A true GB685205A (en) | 1952-12-31 |
Family
ID=19782196
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB10351/49A Expired GB685205A (en) | 1948-04-20 | 1949-04-19 | Improvements in circuits for embodiment in automatic telephone exchange and like systems |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE488602A (enrdf_load_stackoverflow) |
CH (1) | CH278141A (enrdf_load_stackoverflow) |
DE (1) | DE809204C (enrdf_load_stackoverflow) |
FR (1) | FR984830A (enrdf_load_stackoverflow) |
GB (1) | GB685205A (enrdf_load_stackoverflow) |
NL (2) | NL140061B (enrdf_load_stackoverflow) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1030888B (de) * | 1956-07-18 | 1958-05-29 | Siemens Ag | Schaltungsanordnung mit einer Kettenschaltung |
-
0
- BE BE488602D patent/BE488602A/xx unknown
- NL NL73667D patent/NL73667C/xx active
- NL NL656514737A patent/NL140061B/xx unknown
-
1949
- 1949-03-29 DE DEP38158A patent/DE809204C/de not_active Expired
- 1949-04-19 CH CH278141D patent/CH278141A/de unknown
- 1949-04-19 GB GB10351/49A patent/GB685205A/en not_active Expired
- 1949-04-19 FR FR984830D patent/FR984830A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE488602A (enrdf_load_stackoverflow) | |
DE809204C (de) | 1951-07-23 |
FR984830A (fr) | 1951-07-11 |
CH278141A (de) | 1951-09-30 |
NL140061B (nl) | |
NL73667C (enrdf_load_stackoverflow) |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB661182A (en) | Pulse electronic switching systems | |
GB685205A (en) | Improvements in circuits for embodiment in automatic telephone exchange and like systems | |
US2823264A (en) | Step-by-step system | |
GB737865A (en) | Selection system for electrical circuits or equipments | |
GB616834A (en) | Improvements in or relating to automatic switches for use in telephone systems | |
US2707725A (en) | Reverting call system | |
GB782875A (enrdf_load_stackoverflow) | ||
US2774819A (en) | Finder arrangement in telephone systems | |
US2804503A (en) | Switching selector repeater systems | |
US2911478A (en) | Telephone system | |
GB720191A (en) | A telephone system with a relay-less line circuit and circuits in co-operation therein for extending a call | |
US3267219A (en) | Paging system | |
US2559312A (en) | Crossbar tandem office for telephone systems | |
GB1015359A (en) | Telephone switching systems | |
US2465539A (en) | Call failure signaling arrangement | |
US2938959A (en) | Relayless line circuit | |
US2701278A (en) | Connector circuits | |
US2748196A (en) | Telephone system | |
US2684407A (en) | Selector | |
US2864890A (en) | Auto-selecting cross-bar telephone system | |
US2429911A (en) | Multiexchange impulse repeating system | |
US1455769A (en) | abteb | |
GB729261A (en) | Improvements in or relating to voice-frequency signalling systems | |
US3210473A (en) | Trunk circuit pad-control arrangements | |
GB719656A (en) | An automatic telephone system comprising a satellite exchange connected to a main exchange |