DK70042C
(en )
1949-10-10
Method of assembling an electrode system for electric discharge tubes.
FR943296A
(en )
1949-03-03
Cold cathode magnetron
CH262907A
(en )
1949-07-31
Disc-shaped, indirectly heated cathode for electrical discharge tubes.
DK71521C
(en )
1950-09-25
Process for the manufacture of an electric discharge tube with an oxide cathode.
DK71004C
(en )
1950-05-15
Process for the manufacture of electric discharge tubes with an oxide cathode.
CH260730A
(en )
1949-03-31
Process for producing the oxide cathode of an electrical discharge tube and discharge tube produced by this process.
DK72490C
(en )
1951-05-07
Method of manufacturing an electric discharge tube.
DK72044C
(en )
1951-01-22
Method of adjusting the position of a disc-shaped cathode in an electric discharge tube.
CH269933A
(en )
1950-07-31
Electric discharge tube with an indirectly heated cathode.
CH262420A
(en )
1949-06-30
Electric discharge tube.
DK71491C
(en )
1950-09-18
Electric discharge tube with indirect heated cathode.
DK73555C
(en )
1951-12-27
Method of manufacturing electron tubes.
DK71186C
(en )
1950-07-03
Process for the manufacture of electric discharge pipes.
CH241775A
(en )
1946-03-31
Electric discharge tube.
DK75830C
(en )
1953-05-11
Method of manufacturing electron discharges.
DK70227C
(en )
1949-11-21
Electric discharge tube with several electrode systems.
DK67979C
(en )
1948-11-22
Method of manufacturing an electric discharge tube, the cathode of which is manufactured outside the tube.
CH261760A
(en )
1949-05-31
Electric discharge tube.
CH260194A
(en )
1949-02-28
Electric discharge tube.
DK86798C
(en )
1959-01-26
Process for the manufacture of electric shortwave discharge tubes with flat electrodes.
DK83460C
(en )
1957-09-16
Process for the manufacture of electric shortwave discharge tubes with flat electrodes.
FR934632A
(en )
1948-05-27
Emissive cathode
CH250513A
(en )
1947-08-31
Electric discharge tube with sleeve cathode.
FR920996A
(en )
1947-04-23
Ion discharge tube
FI22982A
(en )
1948-06-10
Tube with acid-resistant liners