FR778365A - - Google Patents

Info

Publication number
FR778365A
FR778365A FR778365DA FR778365A FR 778365 A FR778365 A FR 778365A FR 778365D A FR778365D A FR 778365DA FR 778365 A FR778365 A FR 778365A
Authority
FR
France
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
French (fr)
Publication date
Application granted granted Critical
Publication of FR778365A publication Critical patent/FR778365A/fr
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q1/00Details of selecting apparatus or arrangements
    • H04Q1/18Electrical details
    • H04Q1/30Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/442Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies
    • H04Q1/4423Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies using one signalling frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
FR778365D Expired FR778365A (enrdf_load_html_response)

Publications (1)

Publication Number Publication Date
FR778365A true FR778365A (enrdf_load_html_response) 1935-03-14

Family

ID=1552264

Family Applications (1)

Application Number Title Priority Date Filing Date
FR778365D Expired FR778365A (enrdf_load_html_response)

Country Status (1)

Country Link
FR (1) FR778365A (enrdf_load_html_response)

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