CH214354A
(en )
1941-04-15
Electrical apparatus.
DK51629C
(en )
1936-05-11
Electrical apparatus, in particular X-ray apparatus.
DK51101C
(en )
1935-12-30
Apparatus for measuring the breakdown voltage between conductors in an electrical wiring system.
DK63640C
(en )
1945-06-25
Apparatus for Interrupting or Regulating Electric Currents.
CH205694A
(en )
1939-06-30
Electrical apparatus.
FR758099A
(en )
1934-01-10
Device for connecting electrical conductors, at the same time forming a socket
CH208627A
(en )
1940-02-15
High voltage electrical apparatus.
FR777590A
(en )
1935-02-23
Device for removably connecting electrical conductors
CH171489A
(en )
1934-08-31
Clamping device for electrical lines.
FR825491A
(en )
1938-03-03
Device for fixing electrical conductors on an insulator
DK44759C
(en )
1931-10-26
Apparatus for Determining the Maximum Current in an Electrical System.
DK61149C
(en )
1943-07-19
Apparatus for Insulating Electrical Conductors.
DK32384C
(en )
1923-10-15
Apparatus for Testing Wiring Connections in Electrical Installations.
CA278234A
(en )
1928-03-06
Dehydrant for electrical apparatus
FR894702A
(en )
1945-01-04
equipment for measuring small quantities in direct current
DK58509C
(en )
1941-03-17
Electrical Apparatus for Television Purpose and Oscillography.
CH203234A
(en )
1939-02-28
Protective device for electrical system parts in alternating current networks.
CH153007A
(en )
1932-02-29
Cable rolling device for electrical lines.
DK40176C
(en )
1929-05-21
Device for Providing an Accessible Zero Point in Three-Phase Wiring.
CA331937A
(en )
1933-04-25
Electric circuit testing device
DK51031C
(en )
1935-12-16
Method and Apparatus for Drawing Electrical Overhead Lines.
CA294001A
(en )
1929-10-15
Device for cooling electrical apparatus
DK60207C
(en )
1942-10-05
Method and Apparatus for Insulating an Electrical Conductor.
CA316208A
(en )
1931-10-20
Apparatus for insulating electrical resistor elements
ES123813A1
(en )
1931-09-01
ELECTRICAL CURRENT CONTROL APPARATUS