CH219021A - Electric telecommunication system. - Google Patents

Electric telecommunication system.

Info

Publication number
CH219021A
CH219021A CH219021DA CH219021A CH 219021 A CH219021 A CH 219021A CH 219021D A CH219021D A CH 219021DA CH 219021 A CH219021 A CH 219021A
Authority
CH
Switzerland
Prior art keywords
telecommunication system
electric telecommunication
electric
telecommunication
Prior art date
Application number
Other languages
German (de)
Inventor
Bell Telephone Manufac Anonyme
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
Application filed by Bell Telephone Mfg filed Critical Bell Telephone Mfg
Publication of CH219021A publication Critical patent/CH219021A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/10—Intermediate station arrangements, e.g. for branching, for tapping-off
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/40—Monitoring; Testing of relay systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/40—Applications of speech amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
CH219021D 1939-06-17 1940-10-04 Electric telecommunication system. CH219021A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB219021X 1939-06-17

Publications (1)

Publication Number Publication Date
CH219021A true CH219021A (en) 1942-01-15

Family

ID=10170719

Family Applications (1)

Application Number Title Priority Date Filing Date
CH219021D CH219021A (en) 1939-06-17 1940-10-04 Electric telecommunication system.

Country Status (4)

Country Link
BE (1) BE475394A (en)
CH (1) CH219021A (en)
FR (1) FR956830A (en)
NL (1) NL70170C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE932135C (en) * 1952-05-24 1955-08-25 Felten & Guilleaume Carlswerk Device for monitoring, remote control or fault location of transmission systems
DE943476C (en) * 1952-07-15 1956-05-24 Felten & Guilleaume Carlswerk Arrangement for remote switching of amplifiers in unmanned intermediate stations
DE951508C (en) * 1953-01-15 1956-10-31 Felten & Guilleaume Carlswerk Installation in transmission systems with several unmanned and remotely fed amplifier stations for switching the operational amplifiers to reserve amplifiers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE932135C (en) * 1952-05-24 1955-08-25 Felten & Guilleaume Carlswerk Device for monitoring, remote control or fault location of transmission systems
DE943476C (en) * 1952-07-15 1956-05-24 Felten & Guilleaume Carlswerk Arrangement for remote switching of amplifiers in unmanned intermediate stations
DE951508C (en) * 1953-01-15 1956-10-31 Felten & Guilleaume Carlswerk Installation in transmission systems with several unmanned and remotely fed amplifier stations for switching the operational amplifiers to reserve amplifiers

Also Published As

Publication number Publication date
BE475394A (en) 1900-01-01
FR956830A (en) 1950-02-08
NL70170C (en) 1900-01-01

Similar Documents

Publication Publication Date Title
CH222363A (en) Electric fuse.
CH237702A (en) Electric selector.
CH255843A (en) Electric telecommunication system.
CH230577A (en) Electrical switchgear.
CH232790A (en) Electric telecommunication system.
FR866862A (en) Electrical communication system
CH219021A (en) Electric telecommunication system.
CH231614A (en) Electric telecommunication system.
CH237887A (en) Telecommunications installation.
CH212584A (en) Electrical calculating device.
DK59300C (en) Electrical Signaling System.
CH218999A (en) Electrical contact device.
FR881294A (en) Telecommunication cables
CH212040A (en) Electric filter.
ES146955A3 (en) An electrical insulator.
FR865515A (en) Electrical communication cables
GR8297B (en) TRIPLE ELECTRIC LIGHTING SYSTEM.
DK59167C (en) Electrical Signaling System.
DK59149C (en) Electrical Signaling System.
ES146998A1 (en) An electric flyswatter device.
GR8635B (en) ELECTRICAL BATTERY INSULATIONS.
DK60155C (en) Electrical Signaling Cable.
ES5201Y (en) Cable terminal.
FR856679A (en) Electrical communications system
DK78539C (en) Electrical circuit.