NL24569C - - Google Patents

Info

Publication number
NL24569C
NL24569C NL24569DA NL24569C NL 24569 C NL24569 C NL 24569C NL 24569D A NL24569D A NL 24569DA NL 24569 C NL24569 C NL 24569C
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 NL24569C publication Critical patent/NL24569C/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
    • H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
NL24569D 1927-03-01 NL24569C (en(2012))

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB572727A GB291510A (en) 1927-03-01 1927-03-01 Improvements in or relating to telephone systems

Publications (1)

Publication Number Publication Date
NL24569C true NL24569C (en(2012))

Family

ID=9801486

Family Applications (1)

Application Number Title Priority Date Filing Date
NL24569D NL24569C (en(2012)) 1927-03-01

Country Status (4)

Country Link
BE (1) BE340841A (en(2012))
FR (1) FR636698A (en(2012))
GB (1) GB291510A (en(2012))
NL (1) NL24569C (en(2012))

Also Published As

Publication number Publication date
GB291510A (en) 1928-06-01
FR636698A (en(2012)) 1928-04-14
BE340841A (en(2012))

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