GB494523A - Improvements in or relating to circuits for electromagnetically operated devices foruse in telephone or like systems - Google Patents

Improvements in or relating to circuits for electromagnetically operated devices foruse in telephone or like systems

Info

Publication number
GB494523A
GB494523A GB1193637A GB1193637A GB494523A GB 494523 A GB494523 A GB 494523A GB 1193637 A GB1193637 A GB 1193637A GB 1193637 A GB1193637 A GB 1193637A GB 494523 A GB494523 A GB 494523A
Authority
GB
United Kingdom
Prior art keywords
operated
telephone
foruse
relating
circuits
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
Application number
GB1193637A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Automatic Telephone and Electric Co Ltd
Original Assignee
Automatic Telephone and Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to BE427715D priority Critical patent/BE427715A/xx
Application filed by Automatic Telephone and Electric Co Ltd filed Critical Automatic Telephone and Electric Co Ltd
Priority to GB1193637A priority patent/GB494523A/en
Publication of GB494523A publication Critical patent/GB494523A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil

Landscapes

  • Emergency Protection Circuit Devices (AREA)
GB1193637A 1937-04-26 1937-04-26 Improvements in or relating to circuits for electromagnetically operated devices foruse in telephone or like systems Expired GB494523A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BE427715D BE427715A (enExample) 1937-04-26
GB1193637A GB494523A (en) 1937-04-26 1937-04-26 Improvements in or relating to circuits for electromagnetically operated devices foruse in telephone or like systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1193637A GB494523A (en) 1937-04-26 1937-04-26 Improvements in or relating to circuits for electromagnetically operated devices foruse in telephone or like systems

Publications (1)

Publication Number Publication Date
GB494523A true GB494523A (en) 1938-10-26

Family

ID=9995355

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1193637A Expired GB494523A (en) 1937-04-26 1937-04-26 Improvements in or relating to circuits for electromagnetically operated devices foruse in telephone or like systems

Country Status (2)

Country Link
BE (1) BE427715A (enExample)
GB (1) GB494523A (enExample)

Also Published As

Publication number Publication date
BE427715A (enExample)

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