BE523338A - - Google Patents

Info

Publication number
BE523338A
BE523338A BE523338DA BE523338A BE 523338 A BE523338 A BE 523338A BE 523338D A BE523338D A BE 523338DA BE 523338 A BE523338 A BE 523338A
Authority
BE
Belgium
Application number
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.)
Publication of BE523338A publication Critical patent/BE523338A/xx

Links

Classifications

    • 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
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/446—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency
    • H04Q1/4465—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency the same frequency being used for all signalling information, e.g. A.C. nr.9 system

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Selective Calling Equipment (AREA)
  • Burglar Alarm Systems (AREA)
BE523338D 1952-01-30 BE523338A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB254852A GB701622A (en) 1952-01-30 1952-01-30 Improvements in and relating to voice frequency signal receivers

Publications (1)

Publication Number Publication Date
BE523338A true BE523338A (de)

Family

ID=9741528

Family Applications (1)

Application Number Title Priority Date Filing Date
BE523338D BE523338A (de) 1952-01-30

Country Status (2)

Country Link
BE (1) BE523338A (de)
GB (1) GB701622A (de)

Also Published As

Publication number Publication date
GB701622A (en) 1953-12-30

Similar Documents

Publication Publication Date Title
FR999113A (de)
JPS306778B1 (de)
FR1016601A (de)
DE1236540C2 (de)
FR999321A (de)
IT500331A (de)
DE1117457C2 (de)
FR999282A (de)
FR999099A (de)
FR999086A (de)
FR999147A (de)
FR999315A (de)
FR56529E (de)
FR999056A (de)
FR999065A (de)
JPS318965B1 (de)
DE1636789U (de)
BE539809A (de)
BE520176A (de)
BE523444A (de)
BE523353A (de)
BE522838A (de)
BE522428A (de)
BE523338A (de)
BE524149A (de)