FR938261A - Telephone network - Google Patents

Telephone network

Info

Publication number
FR938261A
FR938261A FR938261DA FR938261A FR 938261 A FR938261 A FR 938261A FR 938261D A FR938261D A FR 938261DA FR 938261 A FR938261 A FR 938261A
Authority
FR
France
Prior art keywords
telephone network
telephone
network
Prior art date
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
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.)
Automatic Electric Laboratories Inc
Original Assignee
Automatic Electric Laboratories 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
Application filed by Automatic Electric Laboratories Inc filed Critical Automatic Electric Laboratories Inc
Application granted granted Critical
Publication of FR938261A publication Critical patent/FR938261A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/40—Applications of speech amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
FR938261D 1943-10-21 1946-07-25 Telephone network Expired FR938261A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US507067A US2398854A (en) 1943-10-21 1943-10-21 Telephone system

Publications (1)

Publication Number Publication Date
FR938261A true FR938261A (en) 1948-09-09

Family

ID=24017122

Family Applications (1)

Application Number Title Priority Date Filing Date
FR938261D Expired FR938261A (en) 1943-10-21 1946-07-25 Telephone network

Country Status (4)

Country Link
US (1) US2398854A (en)
BE (1) BE466555A (en)
FR (1) FR938261A (en)
GB (1) GB581284A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2564084A (en) * 1946-11-02 1951-08-14 Automatic Elect Lab Telephone system having repeater insertion on long distance lines
US2580709A (en) * 1947-11-14 1952-01-01 Automatic Elect Lab Toll switching telephone system having automatic amplifier insertion and gain setting
US2682577A (en) * 1951-11-05 1954-06-29 Itt Discriminating circuits for dualpurpose trunks
US2781418A (en) * 1953-01-30 1957-02-12 Gen Dynamics Corp Automatic telephone system
US3689704A (en) * 1969-12-17 1972-09-05 Itt Constant current output controlled repeater insertion

Also Published As

Publication number Publication date
BE466555A (en)
US2398854A (en) 1946-04-23
GB581284A (en) 1946-10-08

Similar Documents

Publication Publication Date Title
FR976125A (en) Coupling
FR946571A (en) Self-timer network
CH261511A (en) Telecommunications office installation.
FR948179A (en) Coupling network
FR938261A (en) Telephone network
CH252220A (en) Network protection device.
CH276282A (en) Telecommunications exchange system.
CH241312A (en) Telephone set.
FR938206A (en) Telephone sets
AT167786B (en) Telecommunication system
FR941849A (en) Telephone network or analogue
FR893409A (en) Connection
CH257773A (en) Electroacoustic converter.
FR907509A (en) Dialer
FR942753A (en) Telephone system
CH246848A (en) Telecommunication system.
CH237706A (en) Telephone station.
CH252031A (en) Intercom.
AT168855B (en) High-frequency communication system
FR902542A (en) Mobile phone cable
FR906745A (en) Self-supporting aerial telephone cable
FR943680A (en) Coupling networks
ES161324A3 (en) AN AUTO-VALVE LIGHTNING ARRESTOR.
FR57601E (en) New autoclave-filter
CH247563A (en) Loudspeaker telephone system.