CH202100A
(en )
1938-12-31
Glow electrode for electric discharge tubes.
DK54032C
(en )
1937-12-20
Electrode system with asymmetric conductivity.
DK55504C
(en )
1938-11-28
Electrode with Carbon Layer for Electric Discharge Tubes and Procedure for Its Manufacture.
FR801749A
(en )
1936-08-14
Improvements made to discharge tubes
DK66011C
(en )
1947-12-08
Glow electrode for electric discharge tubes and Procedure for its manufacture.
FR786440A
(en )
1935-09-03
Electric discharge tubes
FR815084A
(en )
1937-07-05
Improvements to thermionic discharge tubes
DK55039C
(en )
1938-08-01
Electrode with Strong Secondary Emission Capacity and Method of Manufacturing.
DK58371C
(en )
1941-01-27
Electric Discharge Tube with Secondary Emission Electrode and Method of Manufacturing.
DK57590C
(en )
1940-05-14
Electric Discharge Tube with Secondary Emission Electrode and Procedure for its Manufacture.
FR803080A
(en )
1936-09-22
Improvements to the heating elements of the electrodes of the discharge tubes
DK53893C
(en )
1937-11-22
Coupling to Glow Cathode Rectifiers with Related Resistance and Procedure for its Manufacture.
DK51943C
(en )
1936-07-27
Electrode Support for Discharge Tubes.
DK51234C
(en )
1936-02-03
Electrode for Electric Discharge Tubes and Procedure for Manufacturing the Electrode.
DK55791C
(en )
1939-02-06
Incandescent cathode tube with an Incandescent cathode with very low Heat capacity.
DK56600C
(en )
1939-08-28
Electric Discharge Tube with Secondary Emission Electrode.
DK56111C
(en )
1939-05-01
Electric Discharge Tube with Secondary Emission Electrode.
DK58988C
(en )
1941-09-01
Electric Discharge Tube with Secondary Emission Electrode and Method of Manufacturing.
ES131674A1
(en )
1933-10-16
Improvements in the manufacture of electronic tubes or valves with cathode, anode and four interposed grid electrodes.
DK50770C
(en )
1935-10-14
Electric Discharge Tube with a Cathode and one or more Grids.
DK53482C
(en )
1937-08-23
Method for the manufacture of indirectly heated cathodes for electric discharge tubes with helical filament.
DK54033C
(en )
1937-12-20
Method for the manufacture of indirectly heated cathodes for electric discharge tubes with helical filament.
DK54034C
(en )
1937-12-20
Method for the manufacture of indirectly heated cathodes for electric discharge tubes with helical filament.
DK57591C
(en )
1940-05-14
Electric Discharge Tube with Photocathode and Grid-shaped Secondary Emission Electrodes.
DK57563C
(en )
1940-05-06
Electric Discharge Tube with Photocathode and Grid-shaped Secondary Emission Electrodes.