FR331884A - Alarm device that operates automatically in the event of a break-in or fire - Google Patents

Alarm device that operates automatically in the event of a break-in or fire

Info

Publication number
FR331884A
FR331884A FR331884DA FR331884A FR 331884 A FR331884 A FR 331884A FR 331884D A FR331884D A FR 331884DA FR 331884 A FR331884 A FR 331884A
Authority
FR
France
Prior art keywords
fire
break
event
alarm device
operates automatically
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
Hermann Rudolph Lassen
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR331884A publication Critical patent/FR331884A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H17/00—Switches having flexible operating part adapted only for pulling, e.g. cord, chain
FR331884D 1903-05-09 1903-05-09 Alarm device that operates automatically in the event of a break-in or fire Expired FR331884A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR331884T 1903-05-09

Publications (1)

Publication Number Publication Date
FR331884A true FR331884A (en) 1903-10-06

Family

ID=1381566

Family Applications (1)

Application Number Title Priority Date Filing Date
FR331884D Expired FR331884A (en) 1903-05-09 1903-05-09 Alarm device that operates automatically in the event of a break-in or fire

Country Status (1)

Country Link
FR (1) FR331884A (en)

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