FR848214A - Electrical communication systems - Google Patents

Electrical communication systems

Info

Publication number
FR848214A
FR848214A FR848214DA FR848214A FR 848214 A FR848214 A FR 848214A FR 848214D A FR848214D A FR 848214DA FR 848214 A FR848214 A FR 848214A
Authority
FR
France
Prior art keywords
communication systems
electrical communication
electrical
systems
communication
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR848214A publication Critical patent/FR848214A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/28—Reducing interference caused by currents induced in cable sheathing or armouring

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Amplifiers (AREA)
FR848214D 1938-01-03 1938-12-30 Electrical communication systems Expired FR848214A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US183045A US2175366A (en) 1938-01-03 1938-01-03 Communication system
US183289A US2175358A (en) 1938-01-03 1938-01-04 Communication system

Publications (1)

Publication Number Publication Date
FR848214A true FR848214A (en) 1939-10-25

Family

ID=26878694

Family Applications (1)

Application Number Title Priority Date Filing Date
FR848214D Expired FR848214A (en) 1938-01-03 1938-12-30 Electrical communication systems

Country Status (2)

Country Link
US (2) US2175366A (en)
FR (1) FR848214A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2559515A (en) * 1947-07-01 1951-07-03 Gen Precision Lab Inc High-fidelity amplifier
US3482235A (en) * 1965-12-01 1969-12-02 Marathon Oil Co Field gradient detector

Also Published As

Publication number Publication date
US2175358A (en) 1939-10-10
US2175366A (en) 1939-10-10

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