NL7113728A - - Google Patents

Info

Publication number
NL7113728A
NL7113728A NL7113728A NL7113728A NL7113728A NL 7113728 A NL7113728 A NL 7113728A NL 7113728 A NL7113728 A NL 7113728A NL 7113728 A NL7113728 A NL 7113728A NL 7113728 A NL7113728 A NL 7113728A
Authority
NL
Netherlands
Application number
NL7113728A
Other versions
NL156882B (nl
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 claimed from DE19702049346 external-priority patent/DE2049346C3/de
Application filed filed Critical
Publication of NL7113728A publication Critical patent/NL7113728A/xx
Publication of NL156882B publication Critical patent/NL156882B/nl

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
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
NL7113728A 1970-10-07 1971-10-06 Inrichting voor een eindpost in een telecommunicatie-installatie, in het bijzonder telefooninstallatie, voor het voortbrengen van een akoestisch wegsignaal. NL156882B (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702049346 DE2049346C3 (de) 1970-10-07 Schaltungsanordnung zur Erzeugung eines akustischen Rufsignals für Endstellen in Fernmelde-, insbesondere Fernsprechanlagen mittels einer Schwingschaltung

Publications (2)

Publication Number Publication Date
NL7113728A true NL7113728A (nl) 1972-04-11
NL156882B NL156882B (nl) 1978-05-16

Family

ID=5784495

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7113728A NL156882B (nl) 1970-10-07 1971-10-06 Inrichting voor een eindpost in een telecommunicatie-installatie, in het bijzonder telefooninstallatie, voor het voortbrengen van een akoestisch wegsignaal.

Country Status (8)

Country Link
AT (1) AT311432B (nl)
BE (1) BE773617A (nl)
CH (1) CH543204A (nl)
FR (1) FR2110265B1 (nl)
GB (1) GB1366167A (nl)
LU (1) LU64012A1 (nl)
NL (1) NL156882B (nl)
SE (1) SE371920B (nl)

Also Published As

Publication number Publication date
NL156882B (nl) 1978-05-16
CH543204A (de) 1973-10-15
SE371920B (nl) 1974-12-02
DE2049346B2 (de) 1974-01-31
GB1366167A (en) 1974-09-11
FR2110265B1 (nl) 1975-02-07
FR2110265A1 (nl) 1972-06-02
DE2049346A1 (de) 1972-04-13
AT311432B (de) 1973-11-12
BE773617A (fr) 1972-04-07
LU64012A1 (nl) 1972-04-12

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Legal Events

Date Code Title Description
VJC Lapsed due to non-payment of the due maintenance fee for the patent or patent application
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: SIEMENS