FR1416951A - Device for power line telephone system - Google Patents

Device for power line telephone system

Info

Publication number
FR1416951A
FR1416951A FR998022A FR998022A FR1416951A FR 1416951 A FR1416951 A FR 1416951A FR 998022 A FR998022 A FR 998022A FR 998022 A FR998022 A FR 998022A FR 1416951 A FR1416951 A FR 1416951A
Authority
FR
France
Prior art keywords
power line
telephone system
line telephone
power
telephone
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
FR998022A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 NL301627A external-priority patent/NL147597B/en
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Priority to FR998022A priority Critical patent/FR1416951A/en
Application granted granted Critical
Publication of FR1416951A publication Critical patent/FR1416951A/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)
FR998022A 1963-12-10 1964-12-09 Device for power line telephone system Expired FR1416951A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR998022A FR1416951A (en) 1963-12-10 1964-12-09 Device for power line telephone system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL301627A NL147597B (en) 1963-12-10 1963-12-10 DEVICE FOR LOCATING A DEFECTIVE AMPLIFIER IN AN AMPLIFIER STATION OF A CARRIAGE TELEPHONY SYSTEM.
FR998022A FR1416951A (en) 1963-12-10 1964-12-09 Device for power line telephone system

Publications (1)

Publication Number Publication Date
FR1416951A true FR1416951A (en) 1965-11-05

Family

ID=26211639

Family Applications (1)

Application Number Title Priority Date Filing Date
FR998022A Expired FR1416951A (en) 1963-12-10 1964-12-09 Device for power line telephone system

Country Status (1)

Country Link
FR (1) FR1416951A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2186786A1 (en) * 1971-04-21 1974-01-11 Philips Nv
CN108572021A (en) * 2017-03-13 2018-09-25 上海融德机电工程设备有限公司 The double float level meters of intelligence

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2186786A1 (en) * 1971-04-21 1974-01-11 Philips Nv
CN108572021A (en) * 2017-03-13 2018-09-25 上海融德机电工程设备有限公司 The double float level meters of intelligence

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