BE732365A - - Google Patents

Info

Publication number
BE732365A
BE732365A BE732365DA BE732365A BE 732365 A BE732365 A BE 732365A BE 732365D A BE732365D A BE 732365DA BE 732365 A BE732365 A BE 732365A
Authority
BE
Belgium
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.)
Filing date
Publication date
Application filed filed Critical
Publication of BE732365A publication Critical patent/BE732365A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
    • H04M9/005—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line
    • H04M9/007—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line wherein the key telephone sets are star-connected to a central unit by a limited number of lines

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
BE732365D 1968-05-02 1969-04-30 BE732365A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US72606268A 1968-05-02 1968-05-02

Publications (1)

Publication Number Publication Date
BE732365A true BE732365A (de) 1969-10-01

Family

ID=24917066

Family Applications (1)

Application Number Title Priority Date Filing Date
BE732365D BE732365A (de) 1968-05-02 1969-04-30

Country Status (6)

Country Link
US (1) US3549820A (de)
BE (1) BE732365A (de)
DE (1) DE1921782B2 (de)
FR (1) FR2007689A1 (de)
GB (1) GB1264821A (de)
SE (1) SE359997B (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH519283A (it) * 1969-09-12 1972-02-15 Cselt Centro Studi Lab Telecom Concentratore di traffico telefonico semielettronico con struttura ad albero
US3660611A (en) * 1970-06-05 1972-05-02 Bell Telephone Labor Inc Program controlled key telephone system for automatic selection of a prime line
CA1018270A (en) * 1972-05-23 1977-09-27 Federico R. Laliccia Key telephone system using time division and space division control
GB1437031A (en) * 1973-04-04 1976-05-26 Plessey Co Ltd House exchange telephone system
US4092501A (en) * 1973-12-05 1978-05-30 Iwasaki Tsushinki Kabushiki Kaisha Key telephone system
US4027110A (en) * 1973-12-05 1977-05-31 Iwasaki Tsushinki Kabushiki Kaisha Key telephone system
US3973085A (en) * 1974-09-26 1976-08-03 The Anaconda Company Key telephone system with directly associated station cards and sets
FR2335107A1 (fr) * 1975-10-15 1977-07-08 Lannionnais Electronique Concentrateur spatial
GB1575002A (en) * 1976-03-11 1980-09-17 Post Office Data transmission system
US4196316A (en) * 1977-09-13 1980-04-01 Bell Telephone Laboratories, Incorporated Program controlled communication system having individually rearrangeable line selection
US4480152A (en) * 1982-02-26 1984-10-30 Western Electric Company, Inc. Methods and apparatus for protecting line relay contacts in a telephone switching system
JPS58195393A (ja) * 1982-05-10 1983-11-14 Nec Corp ボタン電話装置
US4511767A (en) * 1983-04-21 1985-04-16 Northern Telecom Limited Key telephone system signalling and control arrangement
US4499338A (en) * 1983-04-21 1985-02-12 Northern Telecom, Ltd. Key telephone system signalling and control arrangement
US4511766A (en) * 1983-04-21 1985-04-16 Northern Telecom Limited Key telephone system signalling and control arrangement

Also Published As

Publication number Publication date
DE1921782B2 (de) 1971-04-15
US3549820A (en) 1970-12-22
FR2007689A1 (de) 1970-01-09
DE1921782A1 (de) 1969-11-06
GB1264821A (de) 1972-02-23
SE359997B (de) 1973-09-10

Similar Documents

Publication Publication Date Title
AU5506869A (de)
AU5184069A (de)
FR2007689A1 (de)
AU6168869A (de)
AU6171569A (de)
AU4811568A (de)
AU4744468A (de)
AR203075Q (de)
BE728526A (de)
BE727044A (de)
BE642636A (de)
BE630165A (de)
BE581157A (de)
AU5758767A (de)
AU479894A (de)
AU479393A (de)
BE708933A (de)
BE709319A (de)
AU463027A (de)
BE708951A (de)
AU4558658A (de)
BE728686A (de)
BE728533A (de)
BE728085A (de)
BE728408A (de)

Legal Events

Date Code Title Description
RE20 Patent expired

Owner name: WESTERN ELECTRIC CY INC.

Effective date: 19890430