BE446464A - - Google Patents

Info

Publication number
BE446464A
BE446464A BE446464DA BE446464A BE 446464 A BE446464 A BE 446464A BE 446464D A BE446464D A BE 446464DA BE 446464 A BE446464 A BE 446464A
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.)
Filing date
Publication date
Application filed filed Critical
Publication of BE446464A publication Critical patent/BE446464A/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
    • H04Q1/442—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies
    • H04Q1/4423—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies using one signalling frequency
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Devices For Supply Of Signal Current (AREA)
BE446464D 1942-07-09 1947-06-20 BE446464A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB954042A GB554786A (en) 1942-07-09 1942-07-09 Electrical signal transmission system

Publications (1)

Publication Number Publication Date
BE446464A true BE446464A (enrdf_load_html_response) 1948-04-17

Family

ID=9873964

Family Applications (1)

Application Number Title Priority Date Filing Date
BE446464D BE446464A (enrdf_load_html_response) 1942-07-09 1947-06-20

Country Status (4)

Country Link
BE (1) BE446464A (enrdf_load_html_response)
CH (1) CH233480A (enrdf_load_html_response)
FR (1) FR882217A (enrdf_load_html_response)
GB (1) GB554786A (enrdf_load_html_response)

Also Published As

Publication number Publication date
FR882217A (fr) 1943-05-21
CH233480A (de) 1944-07-31
GB554786A (en) 1943-07-19

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