FR947517A
(en )
1949-07-05
Coupling coil
CH252630A
(en )
1948-01-15
Magnetron tube for electromagnetic oscillations.
CH260419A
(en )
1949-03-15
Cathode for an electron tube.
CH241284A
(en )
1946-02-28
Thermal fuse on choke coil for low-voltage fluorescent tubes.
CH224490A
(en )
1942-11-30
Step switch for transformers.
CH236648A
(en )
1945-02-28
Tube bundle for heat exchangers.
DK72296C
(en )
1951-03-19
Method for manufacturing an electric discharge lamp.
CH239835A
(en )
1945-11-15
Differential protection for step transformers.
CH225860A
(en )
1943-02-28
High voltage transformer.
CH227873A
(en )
1943-07-15
High performance fuse.
ES10265Y
(en )
1945-07-16
Radiators for refrigeration installations.
CH243541A
(en )
1946-07-31
Radiator.
DK68846C
(en )
1949-04-04
Gaseous discharge tube for regulating electrical machines.
DK66464C
(en )
1948-03-22
Procedure for Manufacturing Iron Cores.
DK63464C
(en )
1945-05-07
Procedure for the manufacture of refractory electric coils.
CH261483A
(en )
1949-05-15
Low temperature electrical transformer.
DK68762C
(en )
1949-03-21
Coupling for regulating electrical machines.
ES36382Y
(en )
1954-02-16
Armature for fluorescent tubes
GR9944B
(en )
1942-08-18
LAMPS FOR ELECTRONIC TUBES.
CH293540A
(en )
1953-09-30
Regulating transformer.
ES10541Y
(en )
1945-09-16
Insulating washer for lamp holder.
DK67569C
(en )
1948-09-06
Coil box for Telegraphs.
DK66461C
(en )
1948-03-22
High voltage fluorescent lighting system.
DK66121C
(en )
1947-12-29
Throttle transformer for discharge pipes.
CH244160A
(en )
1946-08-31
Rectifier transformer, especially for high power direct current high voltage transmissions.