FR2157159A5 - - Google Patents

Info

Publication number
FR2157159A5
FR2157159A5 FR7137681A FR7137681A FR2157159A5 FR 2157159 A5 FR2157159 A5 FR 2157159A5 FR 7137681 A FR7137681 A FR 7137681A FR 7137681 A FR7137681 A FR 7137681A FR 2157159 A5 FR2157159 A5 FR 2157159A5
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
FR7137681A
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.)
Nokia Inc
Original Assignee
Nokia Inc
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
Priority to BE789970D priority Critical patent/BE789970A/xx
Application filed by Nokia Inc filed Critical Nokia Inc
Priority to FR7137681A priority patent/FR2157159A5/fr
Priority to CH1483772A priority patent/CH565488A5/xx
Priority to DE19722250647 priority patent/DE2250647A1/de
Priority to IT3057972A priority patent/IT969631B/it
Priority to SE1348872A priority patent/SE389251B/xx
Priority to GB4832272A priority patent/GB1413312A/en
Priority to NL7214189A priority patent/NL7214189A/xx
Application granted granted Critical
Publication of FR2157159A5 publication Critical patent/FR2157159A5/fr
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M19/00Current supply arrangements for telephone systems
    • H04M19/02Current 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)
  • Devices For Supply Of Signal Current (AREA)
  • Telephonic Communication Services (AREA)
FR7137681A 1971-10-20 1971-10-20 Expired FR2157159A5 (enrdf_load_html_response)

Priority Applications (8)

Application Number Priority Date Filing Date Title
BE789970D BE789970A (fr) 1971-10-20 Dispositif electronique de modulation de courant, notamment de tonalitede faux-appels
FR7137681A FR2157159A5 (enrdf_load_html_response) 1971-10-20 1971-10-20
CH1483772A CH565488A5 (enrdf_load_html_response) 1971-10-20 1972-10-09
DE19722250647 DE2250647A1 (de) 1971-10-20 1972-10-16 Elektronische vorrichtung zur modulation eines stroms, insbesondere von falschanrufsignalen
IT3057972A IT969631B (it) 1971-10-20 1972-10-18 Dispositivo elettronico di modula zione di corrente in particolare di tonalita di falsa chiamata
SE1348872A SE389251B (sv) 1971-10-20 1972-10-19 Strommoduleringsanordning for anvendning i telefonvexlar och som medger matande av flera ledningsutrustningar med falskt anropstillstand med en rytmisk tonsignalstrom
GB4832272A GB1413312A (en) 1971-10-20 1972-10-20 Supply current modulation device
NL7214189A NL7214189A (enrdf_load_html_response) 1971-10-20 1972-10-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7137681A FR2157159A5 (enrdf_load_html_response) 1971-10-20 1971-10-20

Publications (1)

Publication Number Publication Date
FR2157159A5 true FR2157159A5 (enrdf_load_html_response) 1973-06-01

Family

ID=9084647

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7137681A Expired FR2157159A5 (enrdf_load_html_response) 1971-10-20 1971-10-20

Country Status (8)

Country Link
BE (1) BE789970A (enrdf_load_html_response)
CH (1) CH565488A5 (enrdf_load_html_response)
DE (1) DE2250647A1 (enrdf_load_html_response)
FR (1) FR2157159A5 (enrdf_load_html_response)
GB (1) GB1413312A (enrdf_load_html_response)
IT (1) IT969631B (enrdf_load_html_response)
NL (1) NL7214189A (enrdf_load_html_response)
SE (1) SE389251B (enrdf_load_html_response)

Also Published As

Publication number Publication date
BE789970A (fr) 1973-04-12
NL7214189A (enrdf_load_html_response) 1973-04-25
SE389251B (sv) 1976-10-25
IT969631B (it) 1974-04-10
DE2250647A1 (de) 1973-04-26
GB1413312A (en) 1975-11-12
CH565488A5 (enrdf_load_html_response) 1975-08-15

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Legal Events

Date Code Title Description
ST Notification of lapse