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NL60456C - - Google Patents

Info

Publication number
NL60456C
NL60456C NL60456DA NL60456C NL 60456 C NL60456 C NL 60456C NL 60456D A NL60456D A NL 60456DA NL 60456 C NL60456 C NL 60456C
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 NL60456C publication Critical patent/NL60456C/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
    • H04Q1/442—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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/42—Circuits for by-passing of ringing signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
NL60456D 1943-12-22 NL60456C (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR986988T 1943-12-22

Publications (1)

Publication Number Publication Date
NL60456C true NL60456C (fr)

Family

ID=9538574

Family Applications (2)

Application Number Title Priority Date Filing Date
NL60456D NL60456C (fr) 1943-12-22
NL116168D NL116168B (fr) 1943-12-22

Family Applications After (1)

Application Number Title Priority Date Filing Date
NL116168D NL116168B (fr) 1943-12-22

Country Status (3)

Country Link
CH (1) CH270404A (fr)
FR (1) FR986988A (fr)
NL (2) NL116168B (fr)

Also Published As

Publication number Publication date
CH270404A (fr) 1950-08-31
FR986988A (fr) 1951-08-07
NL116168B (fr)

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