AT155588B
(en )
1939-02-25
Arrangement for operating alternating current arcs, in particular for alternating current arc welding.
CH205318A
(en )
1939-06-15
Arrangement for short-term switching of alternating current.
CH267513A
(en )
1950-03-31
Pneumatic circuit breaker for alternating current.
CH208635A
(en )
1940-02-15
Method and arrangement for operating high-voltage discharge tubes.
CH201782A
(en )
1938-12-15
Arrangement for shielding high-frequency tube devices.
CH225436A
(en )
1943-01-31
Procedure for turning off alternating current.
CH214993A
(en )
1941-05-31
Contact arrangement for magnetic switches, especially for contactors, provided with removable, spring-loaded contact fingers.
AT155584B
(en )
1939-02-25
Arrangement for the operation of converters.
CH217864A
(en )
1941-11-15
Device for switching off direct current lines, in particular direct current high-voltage lines.
DK57159C
(en )
1940-01-15
Transformer, in particular for use in electric welding.
CH229708A
(en )
1943-11-15
Device for switching off alternating current.
AT152520B
(en )
1938-02-25
DC transformer for operating radio receivers and amplifiers.
AT148652B
(en )
1937-02-25
Arrangement for the operation of converters.
ES145528A1
(en )
1940-06-16
Device for electric arc welding machines.
CH167638A
(en )
1934-02-28
Method and arrangement for operating high-frequency electric furnaces.
ES145523A1
(en )
1940-05-01
Procedure for electric arc welding.
CH206857A
(en )
1939-08-31
Push button arrangement for alternating current telegraphy.
CH204547A
(en )
1939-05-15
Send arrangement for generating course lines.
CH204624A
(en )
1939-05-15
Method for extinguishing the arc of the valve of the burning phase of multi-phase arc inverters, in particular Marx inverters.
CH167628A
(en )
1934-02-28
Slide disconnector with device for switching off the no-load current of transformers
CH207108A
(en )
1939-09-30
Workbench designed for resharpening files, rasps, etc.
CH189497A
(en )
1937-02-28
Multi-phase spark gap arrangement with electrodes in flowing gas, especially for arc converters.
DK54343C
(en )
1938-02-21
Method and Machine for Manufacturing Electrodes for Electric Arc Welding.
ES78620A2
(en )
1921-09-16
Improvements in sealing or welding machines for electric lamps, ampoules and the like.
DK62157C
(en )
1944-04-17
Welding rod, in particular Electrode for electric arc welding.