CH241317A - Electrical control device. - Google Patents

Electrical control device.

Info

Publication number
CH241317A
CH241317A CH241317DA CH241317A CH 241317 A CH241317 A CH 241317A CH 241317D A CH241317D A CH 241317DA CH 241317 A CH241317 A CH 241317A
Authority
CH
Switzerland
Prior art keywords
control device
electrical control
electrical
control
Prior art date
Application number
Other languages
German (de)
Inventor
Automatic Telephone El Limited
Original Assignee
Automatic Telephone & Elect
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
Application filed by Automatic Telephone & Elect filed Critical Automatic Telephone & Elect
Publication of CH241317A publication Critical patent/CH241317A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/32—Signalling arrangements; Manipulation of signalling currents using trains of dc pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Relay Circuits (AREA)
CH241317D 1941-04-28 1942-03-26 Electrical control device. CH241317A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5514/41A GB549047A (en) 1941-04-28 1941-04-28 Improvements in electrical signalling systems utilising trains of impulses for control purposes

Publications (1)

Publication Number Publication Date
CH241317A true CH241317A (en) 1946-02-28

Family

ID=9797640

Family Applications (1)

Application Number Title Priority Date Filing Date
CH241317D CH241317A (en) 1941-04-28 1942-03-26 Electrical control device.

Country Status (7)

Country Link
US (1) US2334591A (en)
BE (1) BE468430A (en)
CH (1) CH241317A (en)
DE (1) DE842361C (en)
FR (1) FR907461A (en)
GB (3) GB549047A (en)
NL (2) NL106092C (en)

Also Published As

Publication number Publication date
GB549047A (en) 1942-11-04
US2334591A (en) 1943-11-16
NL106092C (en)
NL64857C (en)
DE842361C (en) 1952-06-26
GB549074A (en) 1942-11-04
GB550350A (en) 1943-01-04
BE468430A (en)
FR907461A (en) 1946-03-13

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