CH57846A
(en )
1913-02-01
Procedure for switching auxiliary transformers on and off in electrical distribution networks
CH71393A
(en )
1916-01-03
Method and device for interrupting electric arcs
CH72679A
(en )
1916-06-16
Dowels for fixing insulating pipes, switches, boxes and other electrical apparatus
CH56932A
(en )
1912-12-02
Switching device that can be operated with low current for switching electrical lighting on and off
CH48002A
(en )
1910-09-01
Equipment in electrical apparatus for switching over groups of turns
CH66390A
(en )
1914-09-01
Device for fastening busbars in electrical switchgear
AT71522B
(en )
1916-04-10
Insulator for laying and tensioning electrical cables.
CH66200A
(en )
1914-08-17
Procedure for replacing wooden masts in high-voltage overhead lines with concrete masts without interrupting operations
FR1134283A
(en )
1957-04-09
Improvement in electrical switches, particularly for high voltage and breaking capacitive circuits
NL288C
(en )
1914-07-15
Safety circuit for cables and overhead conductors in direct and alternating current networks
AT82885B
(en )
1921-02-25
Device for closing and interrupting the electrical current.
CH67029A
(en )
1914-11-02
Method for protecting an electric power station against the effects of mains short circuits
CH108368A
(en )
1925-01-02
Protection device for current limitation and automatic shutdown of electrical power consumers.
AT75616B
(en )
1919-02-25
Multi-part high voltage porcelain insulator.
FR609881A
(en )
1926-08-25
High voltage insulator wall penetration, in particular for electrical gas purification installations
GB241296A
(en )
1925-10-19
Connections for three-phase current transformers
CH74093A
(en )
1917-01-02
Blowing electromagnet with tear-off electrodes for switches in electrical systems
CH43826A
(en )
1909-06-16
Tool for removing and inserting fuses on high voltage electrical power lines
CH75918A
(en )
1917-10-01
Procedure for suppressing the switch-off spark when switching off current-carrying lines
AU263111B
(en )
1912-10-15
Improvements in or relating to electrical transformers
CH53141A
(en )
1912-02-01
Automatic switch for closing and opening electrical circuits one after the other
GB191210545A
(en )
1913-02-20
Improvements in and relating to Protective Devices for Electric Distribution Systems.
CH78904A
(en )
1919-02-01
Electrical voltage fuse
CH75277A
(en )
1917-11-16
Electrical voltage fuse
FR483969A
(en )
1917-08-23
Circuit breaker for electric railways