FR520226A - Automatic locking device for doors - Google Patents

Automatic locking device for doors

Info

Publication number
FR520226A
FR520226A FR520226A FR520226DA FR520226A FR 520226 A FR520226 A FR 520226A FR 520226 A FR520226 A FR 520226A FR 520226D A FR520226D A FR 520226DA FR 520226 A FR520226 A FR 520226A
Authority
FR
France
Prior art keywords
doors
locking device
automatic locking
automatic
locking
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
FR520226A
Other languages
French (fr)
Inventor
John Arthur Maier
Rudolph Demuth
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.)
JOHN ARTHUR MAIER
Original Assignee
JOHN ARTHUR MAIER
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 JOHN ARTHUR MAIER filed Critical JOHN ARTHUR MAIER
Application granted granted Critical
Publication of FR520226A publication Critical patent/FR520226A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C5/00—Fastening devices with bolts moving otherwise than only rectilinearly and only pivotally or rotatively

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR520226A 1919-03-01 1920-07-10 Automatic locking device for doors Expired FR520226A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE520226X 1919-03-01

Publications (1)

Publication Number Publication Date
FR520226A true FR520226A (en) 1921-06-22

Family

ID=6550913

Family Applications (1)

Application Number Title Priority Date Filing Date
FR520226A Expired FR520226A (en) 1919-03-01 1920-07-10 Automatic locking device for doors

Country Status (1)

Country Link
FR (1) FR520226A (en)

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