FR772677A - Assembly for the control of electrical lines of signaling devices - Google Patents

Assembly for the control of electrical lines of signaling devices

Info

Publication number
FR772677A
FR772677A FR772677DA FR772677A FR 772677 A FR772677 A FR 772677A FR 772677D A FR772677D A FR 772677DA FR 772677 A FR772677 A FR 772677A
Authority
FR
France
Prior art keywords
assembly
control
electrical lines
signaling devices
signaling
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)
Inventor
Philippe Jules Valette
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.)
ELECTRO GARD
Original Assignee
ELECTRO GARD
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 ELECTRO GARD filed Critical ELECTRO GARD
Application granted granted Critical
Publication of FR772677A publication Critical patent/FR772677A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/06—Monitoring of the line circuits, e.g. signalling of line faults

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR772677D 1933-08-05 1933-08-05 Assembly for the control of electrical lines of signaling devices Expired FR772677A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR772677T 1933-08-05

Publications (1)

Publication Number Publication Date
FR772677A true FR772677A (en) 1934-11-03

Family

ID=9195012

Family Applications (1)

Application Number Title Priority Date Filing Date
FR772677D Expired FR772677A (en) 1933-08-05 1933-08-05 Assembly for the control of electrical lines of signaling devices

Country Status (1)

Country Link
FR (1) FR772677A (en)

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