BE613770A - Système téléphonique de campagne. - Google Patents

Système téléphonique de campagne.

Info

Publication number
BE613770A
BE613770A BE613770A BE613770A BE613770A BE 613770 A BE613770 A BE 613770A BE 613770 A BE613770 A BE 613770A BE 613770 A BE613770 A BE 613770A BE 613770 A BE613770 A BE 613770A
Authority
BE
Belgium
Prior art keywords
telephone system
campaign telephone
campaign
telephone
Prior art date
Application number
BE613770A
Other languages
English (en)
Inventor
J Van Eynde
V Maggini
H Van Horen
Original Assignee
Bell Telephone Mfg
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 NL288870D priority Critical patent/NL288870A/xx
Application filed by Bell Telephone Mfg filed Critical Bell Telephone Mfg
Priority to BE613770A priority patent/BE613770A/fr
Publication of BE613770A publication Critical patent/BE613770A/fr
Priority to US255051A priority patent/US3264412A/en
Priority to DE19631437401 priority patent/DE1437401A1/de

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
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Mobile Radio Communication Systems (AREA)
BE613770A 1962-02-12 1962-02-12 Système téléphonique de campagne. BE613770A (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NL288870D NL288870A (fr) 1962-02-12
BE613770A BE613770A (fr) 1962-02-12 1962-02-12 Système téléphonique de campagne.
US255051A US3264412A (en) 1962-02-12 1963-01-30 Field telephone system
DE19631437401 DE1437401A1 (de) 1962-02-12 1963-02-08 Schaltungsanordnung fuer Rufumsetzer in Fernsprechvermittlungsanlagen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE613770A BE613770A (fr) 1962-02-12 1962-02-12 Système téléphonique de campagne.

Publications (1)

Publication Number Publication Date
BE613770A true BE613770A (fr) 1962-08-13

Family

ID=3845323

Family Applications (1)

Application Number Title Priority Date Filing Date
BE613770A BE613770A (fr) 1962-02-12 1962-02-12 Système téléphonique de campagne.

Country Status (4)

Country Link
US (1) US3264412A (fr)
BE (1) BE613770A (fr)
DE (1) DE1437401A1 (fr)
NL (1) NL288870A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4001515A (en) * 1974-11-21 1977-01-04 Astreon Corporation Interfacing unit for telephone networks
IT1143632B (it) * 1977-01-24 1986-10-22 Sits Soc It Telecom Siemens Circuito rivelatore di chiamata acustica,specialmente per apparecchi telefonici

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2299257A (en) * 1941-07-09 1942-10-20 Simon Harry Telephone dial mask
GB641888A (en) * 1947-02-07 1950-08-23 Standard Telephones Cables Ltd Improvements in or relating to electric signalling systems
US2590804A (en) * 1949-12-22 1952-03-25 Anthony S Vitale Battery casing
US2707211A (en) * 1951-03-30 1955-04-26 Itt Adapter circuit
US2700695A (en) * 1953-12-10 1955-01-25 Herbert A Gottschall Plastic battery case
US2834837A (en) * 1954-12-08 1958-05-13 North Electric Co Dust cover of silencing material for telephone dial mechanism
US2951910A (en) * 1958-01-14 1960-09-06 North Electric Co Substation signalling device
US2949507A (en) * 1959-05-14 1960-08-16 Bell Telephone Labor Inc Electrical information system
US3156775A (en) * 1959-12-02 1964-11-10 Itt Telephone converter

Also Published As

Publication number Publication date
DE1437401A1 (de) 1968-10-24
NL288870A (fr)
US3264412A (en) 1966-08-02

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