NL69823C - - Google Patents

Info

Publication number
NL69823C
NL69823C NL69823DA NL69823C NL 69823 C NL69823 C NL 69823C NL 69823D A NL69823D A NL 69823DA NL 69823 C NL69823 C NL 69823C
Authority
NL
Netherlands
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 NL69823C publication Critical patent/NL69823C/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/08—Metering calls to called party, i.e. B-party charged for the communication
    • 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
    • H04Q1/38—Signalling arrangements; Manipulation of signalling currents using combinations of direct currents of different amplitudes or polarities over line conductors or combination of line conductors

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
NL69823D 1944-02-12 NL69823C (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US600822XA 1944-02-12 1944-02-12

Publications (1)

Publication Number Publication Date
NL69823C true NL69823C (xx)

Family

ID=22027223

Family Applications (1)

Application Number Title Priority Date Filing Date
NL69823D NL69823C (xx) 1944-02-12

Country Status (3)

Country Link
BE (1) BE464918A (xx)
GB (1) GB600822A (xx)
NL (1) NL69823C (xx)

Also Published As

Publication number Publication date
GB600822A (en) 1948-04-20
BE464918A (xx)

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