BE436739A - - Google Patents

Info

Publication number
BE436739A
BE436739A BE436739DA BE436739A BE 436739 A BE436739 A BE 436739A BE 436739D A BE436739D A BE 436739DA BE 436739 A BE436739 A BE 436739A
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 BE436739A publication Critical patent/BE436739A/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
    • H04Q1/446—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency
    • H04Q1/4465—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency the same frequency being used for all signalling information, e.g. A.C. nr.9 system

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
BE436739D 1938-12-01 BE436739A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1938L0096432 DE703506C (de) 1938-12-01 1938-12-01 Schaltung fuer selektiven Tonfrequenzruf

Publications (1)

Publication Number Publication Date
BE436739A true BE436739A (enrdf_load_html_response)

Family

ID=27797496

Family Applications (1)

Application Number Title Priority Date Filing Date
BE436739D BE436739A (enrdf_load_html_response) 1938-12-01

Country Status (4)

Country Link
BE (1) BE436739A (enrdf_load_html_response)
DE (1) DE703506C (enrdf_load_html_response)
FR (1) FR868421A (enrdf_load_html_response)
NL (1) NL60537C (enrdf_load_html_response)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE954519C (de) * 1951-12-13 1956-12-20 Standard Elek K Ag Schaltungsanordnung zum Empfang von Ruf- und Wahlzeichen
DE1161593C2 (de) * 1961-06-02 1974-06-20 Felten & Guilleaume Gmbh Schaltungsanordnung fuer Rufumsetzer mit UEbergang von zweidraehtiger auf vierdraehtige Niederfrequenzverbindung
CH665738A5 (de) * 1984-09-11 1988-05-31 Siemens Ag Albis Gabelschaltung.

Also Published As

Publication number Publication date
NL60537C (enrdf_load_html_response)
FR868421A (fr) 1941-12-30
DE703506C (de) 1941-03-11

Similar Documents

Publication Publication Date Title
FR831408A (enrdf_load_html_response)
BE427850A (enrdf_load_html_response)
BE427877A (enrdf_load_html_response)
NL96134C (enrdf_load_html_response)
NL60537C (enrdf_load_html_response)
NL94360C (enrdf_load_html_response)
NL93225C (enrdf_load_html_response)
BE444126A (enrdf_load_html_response)
BE433094A (enrdf_load_html_response)
BE432428A (enrdf_load_html_response)
BE428654A (enrdf_load_html_response)
BE428507A (enrdf_load_html_response)
BE428470A (enrdf_load_html_response)
BE428437A (enrdf_load_html_response)
BE425911A (enrdf_load_html_response)
BE425884A (enrdf_load_html_response)
BE428159A (enrdf_load_html_response)
BE428127A (enrdf_load_html_response)
BE428117A (enrdf_load_html_response)
BE428063A (enrdf_load_html_response)
BE428011A (enrdf_load_html_response)
BE427988A (enrdf_load_html_response)
BE427957A (enrdf_load_html_response)
BE427948A (enrdf_load_html_response)
BE427924A (enrdf_load_html_response)