CH311957A
(en )
1955-12-15
Electric current rectifier.
DK73913C
(en )
1952-03-24
System for electric train operation when feeding with single-phase alternating current.
CH286996A
(en )
1952-11-15
Electrical switch, in particular alternating current switch.
DK78423C
(en )
1954-11-15
Electricity meter for alternating current.
CH259934A
(en )
1949-02-15
Control unit for alternating current.
ES20584Y
(en )
1950-02-01
Switch for electric current reducing lifters.
ES21513Y
(en )
1950-05-16
Push button for electric current.
FI25533A
(en )
1952-01-10
Arrangement for an electric multiple unit or the like supplied with single-phase alternating current
CA459534A
(en )
1949-09-06
Alternating electric current rectifier
CA457140A
(en )
1949-05-31
Alternating electric current rectifier
FR989264A
(en )
1951-09-06
Advanced amplifying electric machines, operating in alternating current
DK86499C
(en )
1958-11-10
Winding for multiphase electric current machines.
FR989922A
(en )
1951-09-14
Rectifier for alternating current
CH291349A
(en )
1953-06-15
Dry rectifier for electric currents.
CH272746A
(en )
1950-12-31
Contact device for heavy current.
DK72595C
(en )
1951-06-04
Electrical regulator, in particular quick-regulator with current windings, eg for train lighting systems.
DK70038C
(en )
1949-10-10
Installation rotary switch for alternating current.
ES19479Y
(en )
1949-07-16
Perfected electric iron.
NL157447C
(en )
ELECTRIC SLIDE SWITCH.
DK79956C
(en )
1955-10-10
Charging systems for electric batteries.
ES16146Y
(en )
1948-04-01
Switch for electric current.
DK80557C
(en )
1956-02-20
Control systems with electric locks for railways.
DK74060C
(en )
1952-04-28
Kipled, especially for electric lamps.
DK78366C
(en )
1954-11-01
Electric shaver.
FR983151A
(en )
1951-06-20
Three-phase current rectifier by synchronized switching without slip