FR1311245A - Electrical communication system - Google Patents

Electrical communication system

Info

Publication number
FR1311245A
FR1311245A FR875039A FR875039A FR1311245A FR 1311245 A FR1311245 A FR 1311245A FR 875039 A FR875039 A FR 875039A FR 875039 A FR875039 A FR 875039A FR 1311245 A FR1311245 A FR 1311245A
Authority
FR
France
Prior art keywords
communication system
electrical communication
electrical
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
FR875039A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 claimed from GB33992/60A external-priority patent/GB992690A/en
Application filed by General Electric Co PLC filed Critical General Electric Co PLC
Priority to FR875039A priority Critical patent/FR1311245A/en
Application granted granted Critical
Publication of FR1311245A publication Critical patent/FR1311245A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/40—Monitoring; Testing of relay systems
    • H04B17/401—Monitoring; Testing of relay systems with selective localization
    • H04B17/402—Monitoring; Testing of relay systems with selective localization using different frequencies
    • H04B17/403—Monitoring; Testing of relay systems with selective localization using different frequencies generated by local oscillators

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
FR875039A 1960-10-04 1961-10-04 Electrical communication system Expired FR1311245A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR875039A FR1311245A (en) 1960-10-04 1961-10-04 Electrical communication system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB33992/60A GB992690A (en) 1960-10-04 1960-10-04 Improvements in or relating to electric communication systems
FR875039A FR1311245A (en) 1960-10-04 1961-10-04 Electrical communication system

Publications (1)

Publication Number Publication Date
FR1311245A true FR1311245A (en) 1962-12-07

Family

ID=26192566

Family Applications (1)

Application Number Title Priority Date Filing Date
FR875039A Expired FR1311245A (en) 1960-10-04 1961-10-04 Electrical communication system

Country Status (1)

Country Link
FR (1) FR1311245A (en)

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