CH6739A
(en )
1893-10-14
Device for regulating the heating power in electric heating devices
AT23729B
(en )
1906-04-10
Power supply device for electric railways.
CH30532A
(en )
1904-12-31
Power supply device for electrical railways for above-ground power supply
CH30511A
(en )
1904-12-31
Clamping device on electrical apparatus for connecting lead wires
CH2623A
(en )
1891-01-31
Device for the electrical operation of vehicles by means of direct power supply and collective batteries
CH32623A
(en )
1905-08-15
Device for smoothing and keeping the current supply on electrical machines bright
CH32259A
(en )
1905-07-15
Device for heating bodies using electrical energy
DK5936C
(en )
1903-09-14
Electric Power Supply System for Railways.
AT25138B
(en )
1906-07-25
Device for starting and stopping electric motors.
AT26164B
(en )
1906-10-25
Power supply arrangement for electric railways.
AT23763B
(en )
1906-04-10
Regulating device for electric motors.
CH36974A
(en )
1907-03-31
Device for cooling the conductors of electrical power equipment
CH34194A
(en )
1906-03-15
Equipment in power supply systems for electric railways to separate contact lines
CH3182A
(en )
1891-07-15
Fuse in electrical power lines
CH31055A
(en )
1905-02-28
Power locking device on electric pendulum mechanisms
CH33133A
(en )
1905-10-31
Device with electric motors for quick stopping of the same
AT31977B
(en )
1908-02-25
Device for balancing the power requirements of three-phase machines.
CH24342A
(en )
1902-12-15
Current closing device on electric drive devices for electric clocks, electricity meters and the like.
DK6831C
(en )
1904-08-15
Operating device for electric power plants, in particular electric tracks.
CH31238A
(en )
1905-03-15
Safety device in multi-phase power lines
DK1631C
(en )
1898-06-13
Power supply device for electric tracks.
CH32239A
(en )
1905-07-15
Current collector device for electric railways
CH34056A
(en )
1906-03-15
Cooling device on electrical machines
DK17477C
(en )
1913-06-30
Electrical Power Supply and Control Device.
CH42107A
(en )
1909-01-02
Device for cooling collectors of electrical machines