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:Method)

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:Method)

Family

ID=9801486

Family Applications (1)

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

Country Status (4)

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

Also Published As

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

Similar Documents

Publication Publication Date Title
FR621101A (en:Method)
FR636698A (en:Method)
FR615774A (en:Method)
FR623512A (en:Method)
BE345868A (en:Method)
BE348885A (en:Method)
BE341018A (en:Method)
BE348399A (en:Method)
BE347014A (en:Method)
BE349796A (en:Method)
BE347062A (en:Method)
BE348417A (en:Method)
BE343857A (en:Method)
BE348596A (en:Method)
BE342151A (en:Method)
BE343344A (en:Method)
BE343835A (en:Method)
BE347727A (en:Method)
BE344929A (en:Method)
BE348272A (en:Method)
BE347302A (en:Method)
BE349580A (en:Method)
BE345447A (en:Method)
BE348154A (en:Method)
BE347514A (en:Method)