NL272337A - - Google Patents

Info

Publication number
NL272337A
NL272337A NL272337DA NL272337A NL 272337 A NL272337 A NL 272337A NL 272337D A NL272337D A NL 272337DA NL 272337 A NL272337 A NL 272337A
Authority
NL
Netherlands
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 NL272337A publication Critical patent/NL272337A/xx

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
    • 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)
  • Devices For Supply Of Signal Current (AREA)
NL272337D 1960-12-23 NL272337A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US78147A US3059058A (en) 1960-12-23 1960-12-23 Subscriber line circuit with local ringing

Publications (1)

Publication Number Publication Date
NL272337A true NL272337A (xx)

Family

ID=22142214

Family Applications (1)

Application Number Title Priority Date Filing Date
NL272337D NL272337A (xx) 1960-12-23

Country Status (7)

Country Link
US (1) US3059058A (xx)
JP (1) JPS403575B1 (xx)
BE (1) BE611694A (xx)
DE (1) DE1202349B (xx)
FR (1) FR1311553A (xx)
GB (1) GB1002571A (xx)
NL (1) NL272337A (xx)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE632293A (xx) * 1961-03-03
US3235669A (en) * 1963-01-17 1966-02-15 Northern Electric Co Telephone signalling circuits
US3247327A (en) * 1963-01-17 1966-04-19 Northern Electric Co Telephone signalling circuits
US3312787A (en) * 1963-10-17 1967-04-04 Stromberg Carlson Corp Signaling system
US3443033A (en) * 1963-10-31 1969-05-06 Bell Telephone Labor Inc Ringing arrangement for time division telephone systems
US3671678A (en) * 1970-12-22 1972-06-20 Stromberg Carlson Corp Ringing control circuit
US3978293A (en) * 1974-11-07 1976-08-31 Bell Telephone Laboratories, Incorporated Ringing control circuitry with shared ringing loop current detector
US3978292A (en) * 1974-11-07 1976-08-31 Bell Telephone Laboratories, Incorporated Ringing control circuitry with shared ringing loop current detector
FR2296324A1 (fr) * 1974-12-27 1976-07-23 Ericsson Telefon Ab L M Dispositif d'appel perfectionne pour installations de telephonie
WO2015073672A2 (en) 2013-11-15 2015-05-21 Invista Technologies S.A.R.L. Transformation of peroxyacetal intermediate

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2152475A (en) * 1938-03-29 1939-03-28 Bell Telephone Labor Inc Signaling system
NL182780B (nl) * 1952-11-18 Ici Ltd Werkwijze voor de vervaardiging van een vuurvaste module, in het bijzonder een katalysatordrager.

Also Published As

Publication number Publication date
GB1002571A (en) 1965-08-25
FR1311553A (fr) 1962-12-07
BE611694A (fr) 1962-04-16
US3059058A (en) 1962-10-16
JPS403575B1 (xx) 1965-02-25
DE1202349B (de) 1965-10-07

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