CH391036A
(en )
1965-04-30
Electrical contact arrangement in an electrical device with switching blocks
CH56932A
(en )
1912-12-02
Switching device that can be operated with low current for switching electrical lighting on and off
CH60211A
(en )
1913-07-01
Automat for switching electric lights on and off
CH81211A
(en )
1919-05-16
Switch box with plug-in device for connecting electricity consumers
CH57846A
(en )
1913-02-01
Procedure for switching auxiliary transformers on and off in electrical distribution networks
CH455007A
(en )
1968-04-30
Drive for switching electrical switches on and off quickly
CH68240A
(en )
1915-02-16
Electrical contact device
CH58320A
(en )
1913-03-01
Switching in electrical block works
CH72425A
(en )
1916-05-16
Device for switching electrical circuits on and off
AT71041B
(en )
1916-01-25
Device for enabling the currentless switching on and off of switches, contactors and the like during operation with alternating current.
CH64330A
(en )
1914-04-01
Electrical switching device
CH108368A
(en )
1925-01-02
Protection device for current limitation and automatic shutdown of electrical power consumers.
CH78477A
(en )
1918-08-01
Electrical switching device that can be used as a time switch in combination with a clock
DK17477C
(en )
1913-06-30
Electrical Power Supply and Control Device.
CH53141A
(en )
1912-02-01
Automatic switch for closing and opening electrical circuits one after the other
NL174889B
(en )
ELECTRIC HIGH VOLTAGE SWITCH WITH CLOSED GAS CIRCUIT.
CH82863A
(en )
1919-11-01
Switching device for switching electrical circuits on and off
CH65428A
(en )
1914-06-16
Contact device on elevators with lateral clearance intended for pulling up lamps
AT90823B
(en )
1923-01-10
High voltage switch with trip relay and automatic switch-on device.
CH58071A
(en )
1913-02-17
Device for reducing the energy loss in lines for variable electrical currents
CH79727A
(en )
1919-01-02
Automatically acting device for switching gas, liquid or electrical lines on or off
CH77889A
(en )
1918-09-16
Temperature regulating device for an electrical heating device with an electrically operated on and off switch for heating current
CH61778A
(en )
1913-10-16
Automatic electrical switch-off device with time setting
ES50879A1
(en )
1911-10-16
An improvement in electric arc lamps with parallel electrodes.
FR418065A
(en )
1910-11-30
Automatic device for switching on and off electric lamps