FR770388A
(en )
1934-09-12
Compressed air piston switch
AT144717B
(en )
1936-02-25
Compressed air drives, in particular for electric switches.
CH209746A
(en )
1940-04-30
Compressed air switch for high current ratings.
CH188134A
(en )
1936-12-15
Contact arrangement for switches.
CH211721A
(en )
1940-10-15
Pneumatic drive for electrical switches.
CH171607A
(en )
1934-08-31
Motor drive, in particular for electric switch signal boxes.
FR783676A
(en )
1935-07-17
Electric relays
AT156094B
(en )
1939-05-10
Motor-driven switching mechanism, in particular for electric traction vehicles.
CH167617A
(en )
1934-02-28
Molding compound, in particular for electrical insulating materials.
AT152506B
(en )
1938-02-25
Circuit arrangement for the compressed air storage of compressed air operated switches.
FR785414A
(en )
1935-08-09
Pneumatic contactors
CH181457A
(en )
1935-12-15
Electrical high-voltage apparatus, in particular for medical purposes.
FR791499A
(en )
1935-12-11
Multiple contactor
CH202639A
(en )
1939-01-31
Electrical switch, especially for high voltage.
DK56000C
(en )
1939-04-03
Electric Bulb.
ES136385A1
(en )
1935-02-16
ELECTRIC MOTOR, FOR HAND DEVICES
CH182681A
(en )
1936-02-29
Brush, in particular for massage purposes.
GR3794B
(en )
1932-08-27
COMPOSITE ELECTRIC LAMP - COLUMN AFTER SWITCH.
DK53827C
(en )
1937-11-08
Electric Vulcanizer.
CH182812A
(en )
1936-02-29
Gas pressure switch.
CH177153A
(en )
1935-05-15
Switch.
ES134428A1
(en )
1934-07-16
Improvements in air compressors.
ES136216A1
(en )
1935-01-16
Improvements in electric lamps.
ES134167A1
(en )
1934-08-16
Improvements in electric lamps.
ES133697A1
(en )
1934-05-16
An electric pin.