BE514161A - - Google Patents

Info

Publication number
BE514161A
BE514161A BE514161DA BE514161A BE 514161 A BE514161 A BE 514161A BE 514161D A BE514161D A BE 514161DA BE 514161 A BE514161 A BE 514161A
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 BE514161A publication Critical patent/BE514161A/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
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephonic Communication Services (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
BE514161D 1951-12-13 BE514161A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE304209X 1951-12-13

Publications (1)

Publication Number Publication Date
BE514161A true BE514161A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=6116240

Family Applications (1)

Application Number Title Priority Date Filing Date
BE514161D BE514161A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1951-12-13

Country Status (5)

Country Link
US (1) US2744164A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE514161A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH304209A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR1062981A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB712013A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL57800C (nl) * 1941-04-15 1946-07-15 Bell Telephone Manf Co Sa Electrisch seinstelsel
NL55386C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1941-06-21
FR960696A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1942-06-15 1950-04-22

Also Published As

Publication number Publication date
GB712013A (en) 1954-07-14
CH304209A (de) 1954-12-31
FR1062981A (fr) 1954-04-28
US2744164A (en) 1956-05-01

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