CH225651A
(en )
1943-02-15
Arc protection device on high voltage insulators.
CH230577A
(en )
1944-01-15
Electrical switchgear.
DK62814C
(en )
1944-10-23
Arc protection device for high voltage insulators.
DK61660C
(en )
1943-12-06
Arc protection device for high voltage insulators.
CH229713A
(en )
1943-11-15
High voltage switch.
CH218202A
(en )
1941-11-30
High voltage switch.
CH208627A
(en )
1940-02-15
High voltage electrical apparatus.
CH213334A
(en )
1941-01-31
High voltage switch.
CH217681A
(en )
1941-10-31
High voltage switchgear.
IE15619L
(en )
1940-01-12
Circuit-breaker for high voltage
DK62153C
(en )
1944-04-17
Suspension device for high voltage overhead lines.
DK61808C
(en )
1944-01-17
Electric Switchgear with electric Unloading.
DK62714C
(en )
1944-09-25
Circuit breaker for DC high voltage lines.
ES148727A1
(en )
1942-01-16
ELECTRIC SWITCH
DK58770C
(en )
1941-06-16
Device with electrical insulators.
DK56995C
(en )
1939-12-04
Electrical Switch for High Voltage.
DK66427C
(en )
1948-03-15
Arc protector for High Voltage Insulators, especially for Long Range Insulators and Chain Insulators.
DK61267C
(en )
1943-08-30
Protective device for high-voltage direct current transmission systems.
FR943226A
(en )
1949-03-02
Electrical insulators
CH218493A
(en )
1941-12-15
Arrangement at high voltage switches.
CH213664A
(en )
1941-02-28
High voltage electrical cable.
ES146500A2
(en )
1941-04-16
High voltage transformers.
DK60415C
(en )
1942-12-14
Device for metallic enclosures for high voltage conductors.
FR858477A
(en )
1940-11-26
Improvements to protection devices for direct current networks
CA374345A
(en )
1938-06-14
Excess voltage protecting device