CH66221A
(en )
1914-10-16
Electrical security device against burglary and fire
CH51193A
(en )
1911-08-16
Electrical security device against burglary
CH65863A
(en )
1914-07-16
Electrical security device against burglary
CH46771A
(en )
1910-04-16
Electric security device against burglary
CH67041A
(en )
1914-11-02
Electric door lock security with alarm device
FR479887A
(en )
1916-05-19
Electric security alarm
FR475397A
(en )
1915-05-07
Security and public protection apparatus
DK19596C
(en )
1914-12-14
Electric Door Lock with Alarm Device.
DK21241C
(en )
1916-05-29
Safety closure for electrical High voltage rooms and the like.
CH69412A
(en )
1915-06-16
Electric alarm device
CH60439A
(en )
1913-07-16
Face protection device against flies and other insects
DK18774C
(en )
1914-05-04
Device for the introduction of electrical wires in buildings and the like.
CH70053A
(en )
1915-08-16
Hearing protection device
CH67549A
(en )
1914-12-16
Clamping device on pulling elements of roller shutters and roller blinds
FR461874A
(en )
1914-01-13
Electrical safety device against fire and burglary
FI6408A
(en )
1916-08-15
For alarm and vault door alarm device called "Varma"
FR477441A
(en )
1915-10-20
Splice-bridge and electrical
DK13639C
(en )
1910-09-05
Electrical Security Device against Burglary.
FR14123E
(en )
1911-09-23
Electric alarm and alarm device
FR421607A
(en )
1911-02-27
Electric alarm and alarm device
CH61162A
(en )
1913-09-01
Security device on safes
CH63912A
(en )
1914-02-16
Automatic electric light and alarm device
DK12155C
(en )
1909-05-17
Electrical Security Device against Burglary.
DK19084C
(en )
1914-08-03
Electrical Device for Alarm in case of Burglary.
AT71597B
(en )
1916-04-25
Block against improper triggering of electromagnetic safety devices.