JPS4012801B1 - - Google Patents

Info

Publication number
JPS4012801B1
JPS4012801B1 JP2022159A JP2022159A JPS4012801B1 JP S4012801 B1 JPS4012801 B1 JP S4012801B1 JP 2022159 A JP2022159 A JP 2022159A JP 2022159 A JP2022159 A JP 2022159A JP S4012801 B1 JPS4012801 B1 JP S4012801B1
Authority
JP
Japan
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.)
Pending
Application number
JP2022159A
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 filed Critical
Priority to JP2022159A priority Critical patent/JPS4012801B1/ja
Publication of JPS4012801B1 publication Critical patent/JPS4012801B1/ja
Pending legal-status Critical Current

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
    • H04Q1/442—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies
    • H04Q1/4423—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies using one signalling frequency
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Relay Circuits (AREA)
JP2022159A 1959-03-25 1959-06-24 Pending JPS4012801B1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2022159A JPS4012801B1 (ja) 1959-03-25 1959-06-24

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL237529 1959-03-25
JP2022159A JPS4012801B1 (ja) 1959-03-25 1959-06-24

Publications (1)

Publication Number Publication Date
JPS4012801B1 true JPS4012801B1 (ja) 1965-06-22

Family

ID=19751634

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2022159A Pending JPS4012801B1 (ja) 1959-03-25 1959-06-24

Country Status (3)

Country Link
US (1) US3173064A (ja)
JP (1) JPS4012801B1 (ja)
NL (2) NL237529A (ja)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1909212A (en) * 1930-03-11 1933-05-16 Signal Engineering & Mfg Co Selective control circuit for alarm systems
US2512639A (en) * 1944-01-05 1950-06-27 Int Standard Electric Corp Control or signaling system

Also Published As

Publication number Publication date
NL237529A (ja)
US3173064A (en) 1965-03-09
NL98373C (ja)

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