FR444544A - Door alarm device - Google Patents

Door alarm device

Info

Publication number
FR444544A
FR444544A FR444544DA FR444544A FR 444544 A FR444544 A FR 444544A FR 444544D A FR444544D A FR 444544DA FR 444544 A FR444544 A FR 444544A
Authority
FR
France
Prior art keywords
alarm device
door alarm
door
alarm
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
Emil Norbert Kapferer
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 FR444544A publication Critical patent/FR444544A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B45/00—Alarm locks
    • E05B45/02—Alarm locks with mechanically-operated bells

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR444544D 1911-06-03 1912-06-03 Door alarm device Expired FR444544A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE444544X 1911-06-03

Publications (1)

Publication Number Publication Date
FR444544A true FR444544A (en) 1912-10-19

Family

ID=1485514

Family Applications (1)

Application Number Title Priority Date Filing Date
FR444544D Expired FR444544A (en) 1911-06-03 1912-06-03 Door alarm device

Country Status (1)

Country Link
FR (1) FR444544A (en)

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