BE512498A - - Google Patents

Info

Publication number
BE512498A
BE512498A BE512498DA BE512498A BE 512498 A BE512498 A BE 512498A BE 512498D A BE512498D A BE 512498DA BE 512498 A BE512498 A BE 512498A
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 BE512498A publication Critical patent/BE512498A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
BE512498D 1951-06-30 BE512498A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE303094X 1951-06-30

Publications (1)

Publication Number Publication Date
BE512498A true BE512498A (xx)

Family

ID=6109712

Family Applications (1)

Application Number Title Priority Date Filing Date
BE512498D BE512498A (xx) 1951-06-30

Country Status (3)

Country Link
BE (1) BE512498A (xx)
CH (1) CH303094A (xx)
NL (1) NL88076C (xx)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1008828B (de) * 1955-04-22 1957-05-23 Walter Gustav Wilhelm Staecker Leuchtstofflampenarmatur zur Herstellung von Lichtbaendern

Also Published As

Publication number Publication date
CH303094A (de) 1954-11-15
NL88076C (xx)

Similar Documents

Publication Publication Date Title
AT190786B (xx)
AT195616B (xx)
AT197970B (xx)
AT192177A (xx)
BE501518A (xx)
BE501476A (xx)
BE16335A (xx)
BE422752A (xx)
BE466790A (xx)
BE477312A (xx)
BE480026A (xx)
BE491015A (xx)
BE491096A (xx)
BE494945A (xx)
BE498467A (xx)
BE498982A (xx)
BE500297A (xx)
BE500588A (xx)
BE500688A (xx)
BE500744A (xx)
BE500745A (xx)
BE500841A (xx)
BE500989A (xx)
BE500995A (xx)
BE500996A (xx)