AT87771B
(en )
1922-03-27
Controller for railways operated with high voltage direct current.
ES69296A1
(en )
1919-05-01
Announcing car by electric lighting.
ES69942A2
(en )
1919-08-16
Announcing car by electric lighting.
ES70153A2
(en )
1919-08-16
Announcing car by electric lighting.
CH79430A
(en )
1919-04-01
Rail connection for electric railways
DK32345C
(en )
1923-10-08
Overhead line for Power transmission with high voltage DC.
DK26766C
(en )
1920-10-18
Electrical Voltage Indicator.
CH94116A
(en )
1922-04-01
Electric flashlight.
FR500826A
(en )
1920-03-25
Current reversing switch
DK27186C
(en )
1921-02-21
High voltage insulator.
AT90820B
(en )
1923-01-10
DC machine for constant current.
CH89323A
(en )
1921-05-16
Pull switches, in particular for electric light lines.
AT90818B
(en )
1923-01-10
High voltage winding for high voltage transformers.
AT96086B
(en )
1924-02-25
Control for electric vehicles with pneumatically operated contactors.
ES70097A1
(en )
1919-07-16
Improvements in switches for electric lamps.
DK27259C
(en )
1921-03-07
Electrical Switch.
DK34548C
(en )
1925-05-25
Electrical Switch.
DK25062C
(en )
1919-09-22
Electrical Switch.
FR508616A
(en )
1920-10-19
Contactor for alternating current
ES71615A1
(en )
1920-02-16
An electric lighter.
CH81389A
(en )
1919-10-16
Electric locomotive equipped with an oil transformer
ES71476A1
(en )
1920-03-01
Armature for electric lamps.
FI7684A
(en )
1919-10-30
For electric vehicle
ES71817A3
(en )
1920-03-01
Improvements in electric traction cars.
FR517551A
(en )
1921-05-07
Current switch