BE521897A - - Google Patents

Info

Publication number
BE521897A
BE521897A BE521897DA BE521897A BE 521897 A BE521897 A BE 521897A BE 521897D A BE521897D A BE 521897DA BE 521897 A BE521897 A BE 521897A
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 BE521897A publication Critical patent/BE521897A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
BE521897D 1952-08-03 BE521897A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM15000A DE967406C (de) 1952-08-03 1952-08-03 Schaltungsanordnung zur Signalgabe mittels Wechselstrom beliebiger Frequenz

Publications (1)

Publication Number Publication Date
BE521897A true BE521897A (enrdf_load_html_response)

Family

ID=7296746

Family Applications (1)

Application Number Title Priority Date Filing Date
BE521897D BE521897A (enrdf_load_html_response) 1952-08-03

Country Status (3)

Country Link
BE (1) BE521897A (enrdf_load_html_response)
CH (1) CH315754A (enrdf_load_html_response)
DE (1) DE967406C (enrdf_load_html_response)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE563171A (enrdf_load_html_response) * 1956-12-14

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR954872A (enrdf_load_html_response) * 1950-01-06
GB397930A (en) * 1932-03-04 1933-09-04 Marconi Internat Marine Comm C Improvements in or relating to radio and other high frequency transmitters
DE684504C (de) * 1933-12-15 1939-11-29 Siemens & Halske Akt Ges Schaltungsanordnung zur UEbertragung von Stromstoessen in Fernsprechanlagen mit Waehlerbetrieb
DE676645C (de) * 1935-06-16 1939-06-08 Siemens & Halske Akt Ges Schaltungsanordnung zur Signalgabe in Fernsprechanlagen
BE466622A (enrdf_load_html_response) * 1943-01-14
GB566602A (en) * 1943-07-01 1945-01-05 Automatic Telephone & Elect Improvements in telephone or like systems
DE815357C (de) * 1948-10-01 1951-10-01 Siemens & Halske A G Schaltungsanordnung fuer Fernsprechanlagen mit Waehlerbetrieb zur Signalgabe mit Wechselstrom im Sprachfrequenzbereich

Also Published As

Publication number Publication date
CH315754A (de) 1956-08-31
DE967406C (de) 1957-11-07

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