BE416505A - - Google Patents

Info

Publication number
BE416505A
BE416505A BE416505DA BE416505A BE 416505 A BE416505 A BE 416505A BE 416505D A BE416505D A BE 416505DA BE 416505 A BE416505 A BE 416505A
Authority
BE
Belgium
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 BE416505A publication Critical patent/BE416505A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
BE416505D 1935-07-12 BE416505A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US30957A US2091116A (en) 1935-07-12 1935-07-12 Automatic telephone system

Publications (1)

Publication Number Publication Date
BE416505A true BE416505A (en)

Family

ID=21856901

Family Applications (1)

Application Number Title Priority Date Filing Date
BE416505D BE416505A (en) 1935-07-12

Country Status (3)

Country Link
US (1) US2091116A (en)
BE (1) BE416505A (en)
GB (1) GB476587A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE475627A (en) * 1946-08-24
US2562362A (en) * 1947-11-04 1951-07-31 Automatic Elect Lab Testing system employing test distributor switches and test connector switches
US2623956A (en) * 1949-02-14 1952-12-30 Stromberg Carlson Co Telephone test selector
US2564013A (en) * 1949-06-17 1951-08-14 Stromberg Carlson Co Telephone test selector

Also Published As

Publication number Publication date
US2091116A (en) 1937-08-24
GB476587A (en) 1937-12-13

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