DK18960C - Electrical alarm device to prevent unauthorized opening of locks. - Google Patents

Electrical alarm device to prevent unauthorized opening of locks.

Info

Publication number
DK18960C
DK18960C DK18960DA DK18960C DK 18960 C DK18960 C DK 18960C DK 18960D A DK18960D A DK 18960DA DK 18960 C DK18960 C DK 18960C
Authority
DK
Denmark
Prior art keywords
locks
alarm device
prevent unauthorized
unauthorized opening
electrical alarm
Prior art date
Application number
Other languages
Danish (da)
Inventor
Otto Schuemann
Original Assignee
Otto Schuemann
Publication date
Application granted granted Critical
Publication of DK18960C publication Critical patent/DK18960C/en

Links

DK18960D Electrical alarm device to prevent unauthorized opening of locks. DK18960C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK18960T

Publications (1)

Publication Number Publication Date
DK18960C true DK18960C (en) 1914-06-29

Family

ID=27834546

Family Applications (1)

Application Number Title Priority Date Filing Date
DK18960D DK18960C (en) Electrical alarm device to prevent unauthorized opening of locks.

Country Status (1)

Country Link
DK (1) DK18960C (en)

Similar Documents

Publication Publication Date Title
DK18960C (en) Electrical alarm device to prevent unauthorized opening of locks.
FR443239A (en) Security lock
DK20674C (en) Alarming Door Lock to Prevent Burglary.
FR426958A (en) Security lock
DK19084C (en) Electrical Device for Alarm in case of Burglary.
FR472348A (en) Security lock
FR473783A (en) Security lock
FR473781A (en) Security lock
FR471135A (en) Security lock
FR477246A (en) Burglary security device
CH68258A (en) Lock with alarm device
DK29400C (en) Safety device for locks of any kind.
DK19596C (en) Electric Door Lock with Alarm Device.
DK12010C (en) Security key for electrical Alarm in case of burglary.
FR460147A (en) Security lock
FR454754A (en) Security lock
DK19806C (en) Alarm device for Doors.
FR499449A (en) Security lock
FR522216A (en) Security lock
DK20290C (en) Burglar Alarm Device.
CH71007A (en) Door lock
FR434731A (en) Security lock
FR436516A (en) Security lock
FR431830A (en) Security lock
FR436856A (en) Security lock