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FR772984A - Alarm signal control device - Google Patents

Alarm signal control device

Info

Publication number
FR772984A
FR772984A FR772984DA FR772984A FR 772984 A FR772984 A FR 772984A FR 772984D A FR772984D A FR 772984DA FR 772984 A FR772984 A FR 772984A
Authority
FR
France
Prior art keywords
control device
alarm signal
signal control
alarm
signal
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.)
Siemens and Halske AG
Siemens Corp
Original Assignee
Siemens and Halske AG
Siemens Corp
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 Siemens and Halske AG, Siemens Corp filed Critical Siemens and Halske AG
Application granted granted Critical
Publication of FR772984A publication Critical patent/FR772984A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Electromagnetism (AREA)
FR772984D 1933-05-23 1934-05-08 Alarm signal control device Expired FR772984A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE772984X 1933-05-23

Publications (1)

Publication Number Publication Date
FR772984A true FR772984A (en) 1934-11-09

Family

ID=6683014

Family Applications (1)

Application Number Title Priority Date Filing Date
FR772984D Expired FR772984A (en) 1933-05-23 1934-05-08 Alarm signal control device

Country Status (1)

Country Link
FR (1) FR772984A (en)

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