ES176051A1
(en )
1947-01-16
ELECTRON DISCHARGE APPARATUS
CH233012A
(en )
1944-06-30
Apparatus comprising an electric discharge tube with an electron mirror electrode.
DK67193C
(en )
1948-07-12
Apparatus with an electric discharge tube with at least three grids.
DK65963C
(en )
1947-12-01
Apparatus with an Electric Discharge Tube for Very High Frequencies.
DK60967C
(en )
1943-05-31
Apparatus with an electric Gaseous discharge tube.
CH224049A
(en )
1942-10-31
Electric discharge tube.
CH248330A
(en )
1947-04-30
Electric discharge tube.
DK59210C
(en )
1941-11-17
Apparatus with an electric Multiplier type discharge tube.
CH234242A
(en )
1944-09-15
Electric discharge tube.
DK64451C
(en )
1946-04-29
Electric Discharge Tube with at least two Control Grids.
CH241775A
(en )
1946-03-31
Electric discharge tube.
DK58773C
(en )
1941-06-16
Apparatus with an Electron Multiplier Tube.
CH233017A
(en )
1944-06-30
Electric discharge tube.
CH232760A
(en )
1944-06-15
Electric discharge tube.
CH240681A
(en )
1946-01-15
Ion discharge tube.
DK59049C
(en )
1941-09-22
Electric Discharge Tube with Secondary Emission Electrode.
CH219513A
(en )
1942-02-15
Device with an electric gas discharge tube.
DK63530C
(en )
1945-05-28
Apparatus for Use in Telecommunications.
DK66772C
(en )
1948-05-10
Apparatus with an electric discharge tube, by which the electrons are divided into groups according to their energy.
DK64660C
(en )
1946-07-29
Coupling with an electric Air discharge tube.
DK62362C
(en )
1944-06-19
Electric Discharge Tube with Indirect Heated Cathode.
DK66114C
(en )
1947-12-29
Electric discharge tube with directional electron beam and apparatus with such a tube.
DK66850C
(en )
1948-05-24
Electrical Appliance with a Brown Tube.
DK65889C
(en )
1947-11-17
Apparatus with a discharge tube sensitive to space charge variations.
FR886754A
(en )
1943-10-25
Electric discharge tube