DK85268C
(en )
1958-03-24
Low pressure arc discharge tube with at least one activated thermionic emission electrode.
BE589228A
(en )
1960-08-30
Thermionic cathode discharge tube.
FR1141789A
(en )
1957-09-09
Low pressure arc discharge tube
DK100834C
(en )
1965-01-25
Low pressure arc discharge tube with an activated incandescent electrode.
DK97049C
(en )
1963-10-07
Electron discharge tube with fluorescent screen.
DK89365C
(en )
1960-07-18
Glow discharge tube with an auxiliary electrode.
BE558559A
(en )
1960-03-25
GLOW DISCHARGE TUBE, WITH AUXILIARY ANODE.
DK89407C
(en )
1960-07-25
Glow discharge tube with auxiliary anode.
BE558560A
(en )
1960-03-25
AUXILIARY ELECTRODE DISCHARGE TUBE.
DK97047C
(en )
1963-10-07
Glow discharge tubes, especially voltage stabilizer tubes.
BE543775A
(en )
1959-09-25
COLD CATHODE GLOW DISCHARGE TUBE.
FR1195143A
(en )
1959-11-16
Glow discharge tube
BE554967A
(en )
1960-02-12
LUMINESCENT DISCHARGE TUBE.
FR1252492A
(en )
1961-01-27
Thermionic cathode discharge tube
DK89880C
(en )
1960-10-24
Cold cathode tube with an auxiliary discharge line.
CH396234A
(en )
1965-07-31
Multiple-electrode gas discharge tube
FR1227603A
(en )
1960-08-22
Electron discharge lamp with grouped electrodes
DK86032C
(en )
1958-08-11
Electric discharge tube with cage-shaped cathode.
DK85312C
(en )
1958-03-31
High frequency electron discharge tubes.
BE527465A
(en )
1956-10-26
PURE METAL CATHODE EFFLUCE DISCHARGE TUBE.
FR1173672A
(en )
1959-02-27
Glow discharge tube
CA580775A
(en )
1959-08-04
Double beam electron discharge tube
AT191512B
(en )
1957-08-26
Low pressure arc tube
DK93468C
(en )
1962-05-21
Electric discharge tube with an indirect heated cylindrical cathode.
DK87398C
(en )
1959-06-08
Low pressure mercury vapor discharge lamp.