CH57886A
(en )
1913-02-01
Auxiliary device for protection against unintentional activation of electrical safety devices
FR427793A
(en )
1911-08-12
safety bracket
FR484711A
(en )
1917-10-31
Electrical protection devices
FR434290A
(en )
1912-01-30
Safety device against insulation faults of electrical devices
CH70208A
(en )
1915-09-16
Device for protecting electrical lines against interference waves
CH55602A
(en )
1912-09-02
Electric fire dispenser
CH65242A
(en )
1914-06-01
Device for protecting the cords, in particular of plug switches
CH57850A
(en )
1913-02-01
Protected flat conductor
CH57631A
(en )
1913-01-16
Safety plug
CH57854A
(en )
1913-02-01
Surge protection
FR430560A
(en )
1911-10-19
Protective channel for electric cables
CH59741A
(en )
1913-06-02
Electrical installation apparatus
CH54749A
(en )
1912-06-17
Surge protection for the protection of electrical systems
CH54750A
(en )
1912-06-17
Surge protection for the protection of electrical systems
CH56933A
(en )
1912-12-02
Device for stabilizing the arcs of electric furnaces
FR449708A
(en )
1913-03-06
Device for suspending and protecting high voltage electrical conductors
CA133795A
(en )
1911-06-20
System of electric circuit protection
FR460792A
(en )
1913-12-11
Protector for electrical insulators
CH63691A
(en )
1914-02-16
Protection arrangement for electrical circuits against overvoltages and similar disturbances
AT75036B
(en )
1918-11-25
Protection device for electrical lines against interference waves.
FR427341A
(en )
1911-08-01
High voltage protection device
FR451580A
(en )
1913-04-22
Improvements to electrical insulators
NL12200C
(en )
1924-12-15
Safety circuit for cable networks and for windings of electrical machines and appliances
CH58077A
(en )
1913-02-17
Electric capacitor
FR484272A
(en )
1917-09-18
Electrical protection devices