CH78732A
(en )
1918-09-02
Device for stabilizing medium-frequency machines that deliver direct current and alternating current at the same time
CH227178A
(en )
1943-05-31
Device for multiplying factors which correspond to electrical voltages and other quantities.
CH267513A
(en )
1950-03-31
Pneumatic circuit breaker for alternating current.
FR954209A
(en )
1949-12-21
DC generator, especially for welding
DE328223C
(en )
1920-10-27
Device for determining current fluctuations
FR495659A
(en )
1919-10-15
AC current limiter
DK32015C
(en )
1923-07-23
Apparatus for generating alternating current with substantially unchanged Frequency for Radio Signaling Systems and the like.
ES67058A1
(en )
1918-06-16
An apparatus for concentrating minerals.
CH82864A
(en )
1919-11-01
Device for rectifying high and low frequency alternating currents
DK23823C
(en )
1918-12-02
Commissioning device for AC induction motors.
AT126943B
(en )
1932-02-25
Device for controlling electrical devices which can or should suffer functional changes when the current direction changes.
DK23629C
(en )
1918-10-21
Electric Dot Machine.
ES66287A1
(en )
1918-03-01
A device for the interruption of the electric current, in case of breakage of a conductor or an overhead protector.
ES66509A1
(en )
1918-05-01
Procedure and arrangement for the rapid excitation of electrical machines.
CH226099A
(en )
1943-03-15
Arrangement for the automatic control of direct current motors, which are fed via grid-controlled vapor or gas discharge paths in a rectifier circuit.
CH69463A
(en )
1915-06-16
Device for opening canned food
DK29684C
(en )
1922-06-06
Device for DC Generators, Converters and the like.
CH87210A
(en )
1920-11-16
Device for sealing letters, packages and the like.
AT87473B
(en )
1922-02-25
Machine for tinning sheet metal and. like
CH78127A
(en )
1918-06-17
Device on blowtorches for soldering wire strand ends and the like
AT87428B
(en )
1922-02-25
Feeding device on machines for packaging cigarettes and similar objects
CH79325A
(en )
1919-03-17
Device for holding insoles on the foot
FR532214A
(en )
1922-01-30
Current rectifier
ES68359A3
(en )
1918-12-16
An announcing device.
ES66170A2
(en )
1918-02-16
An electrical voltage safety device.