BE131631A - - Google Patents

Info

Publication number
BE131631A
BE131631A BE131631DA BE131631A BE 131631 A BE131631 A BE 131631A BE 131631D A BE131631D A BE 131631DA BE 131631 A BE131631 A BE 131631A
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 BE131631A publication Critical patent/BE131631A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/04—Switchboards

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
BE131631D 1937-12-16 BE131631A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US180075A US2173551A (en) 1937-12-16 1937-12-16 Communication system

Publications (1)

Publication Number Publication Date
BE131631A true BE131631A (enrdf_load_stackoverflow)

Family

ID=22659110

Family Applications (1)

Application Number Title Priority Date Filing Date
BE131631D BE131631A (enrdf_load_stackoverflow) 1937-12-16

Country Status (4)

Country Link
US (1) US2173551A (enrdf_load_stackoverflow)
BE (1) BE131631A (enrdf_load_stackoverflow)
DE (1) DE742933C (enrdf_load_stackoverflow)
FR (1) FR847619A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2495773A (en) * 1942-12-30 1950-01-31 Bell Telephone Labor Inc Alternating current telegraph system
US2605347A (en) * 1949-04-29 1952-07-29 Bell Telephone Labor Inc Telegraph concentration board spare communication circuit

Also Published As

Publication number Publication date
FR847619A (enrdf_load_stackoverflow)
DE742933C (de) 1943-12-16
US2173551A (en) 1939-09-19

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