FR1067734A - Pulse generator for charging telephone calls - Google Patents

Pulse generator for charging telephone calls

Info

Publication number
FR1067734A
FR1067734A FR1067734DA FR1067734A FR 1067734 A FR1067734 A FR 1067734A FR 1067734D A FR1067734D A FR 1067734DA FR 1067734 A FR1067734 A FR 1067734A
Authority
FR
France
Prior art keywords
pulse generator
telephone calls
charging telephone
charging
calls
Prior art date
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)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 by Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Application granted granted Critical
Publication of FR1067734A publication Critical patent/FR1067734A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Control Of Eletrric Generators (AREA)
FR1067734D 1951-12-19 1952-12-16 Pulse generator for charging telephone calls Expired FR1067734A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE721795X 1951-12-19

Publications (1)

Publication Number Publication Date
FR1067734A true FR1067734A (en) 1954-06-17

Family

ID=20316016

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1067734D Expired FR1067734A (en) 1951-12-19 1952-12-16 Pulse generator for charging telephone calls

Country Status (3)

Country Link
BE (1) BE516334A (en)
FR (1) FR1067734A (en)
GB (1) GB721795A (en)

Also Published As

Publication number Publication date
GB721795A (en) 1955-01-12
BE516334A (en)

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