DK70042C
(en )
1949-10-10
Method of assembling an electrode system for electric discharge tubes.
FR936837A
(en )
1948-07-30
Concentrated electronic current discharge tube
CH249243A
(en )
1947-06-15
Gas or vapor-filled electric discharge tube.
CH250761A
(en )
1947-09-15
Electric discharge tube with artificially cooled anode.
DK72614C
(en )
1951-06-11
Electric discharge tube and methods of making an electrode system therefor.
FR952893A
(en )
1949-11-25
Electronic discharge tubes
CH248330A
(en )
1947-04-30
Electric discharge tube.
FR950959A
(en )
1949-10-12
Electron tube
FR943209A
(en )
1949-03-02
Gas current detector
CH241775A
(en )
1946-03-31
Electric discharge tube.
CH262420A
(en )
1949-06-30
Electric discharge tube.
DK72490C
(en )
1951-05-07
Method of manufacturing an electric discharge tube.
FR951793A
(en )
1949-11-03
Advanced electron tube
DK85103C
(en )
1958-02-24
Apparatus for amplification of electric waves.
CH261760A
(en )
1949-05-31
Electric discharge tube.
CH260194A
(en )
1949-02-28
Electric discharge tube.
ES175046A1
(en )
1946-11-01
CONSTRUCTION METHOD OF AN ELECTRIC DISCHARGE LAMP
DK70227C
(en )
1949-11-21
Electric discharge tube with several electrode systems.
DK72669C
(en )
1951-06-25
Electric discharge tube for very high frequencies.
CH241768A
(en )
1946-03-31
Electric discharge tube.
FR923562A
(en )
1947-07-10
Electron tube
CH266985A
(en )
1950-02-28
Electric discharge tube.
CH264748A
(en )
1949-10-31
Electric fluorescent tube.
CH250513A
(en )
1947-08-31
Electric discharge tube with sleeve cathode.
DK67511C
(en )
1948-08-30
Discharge tube with Mercury cathode and submerged Ignition Electrode.