CH314129A
(en )
1956-05-31
Cathode bodies for electric discharge tubes
CH314776A
(en )
1956-06-30
Cathode bodies for electric discharge tubes
CH260736A
(en )
1949-03-31
Electric discharge lamp.
CH299862A
(en )
1954-06-30
Electric discharge device with photocathode and fluorescent screen.
CH314128A
(en )
1956-05-31
Activated electrode for electrical discharge vessels
FR1075165A
(en )
1954-10-13
Cathode for electric discharge tube
CH304168A
(en )
1954-12-31
Electric discharge tube with a metallic wall layer.
AT174679B
(en )
1953-04-25
Electric discharge tube with flat electrodes
CH312426A
(en )
1955-12-31
Electric discharge tube.
AT176614B
(en )
1953-11-10
Electric discharge tube
CH293278A
(en )
1953-09-15
Electric discharge tube.
AT173749B
(en )
1953-01-26
Socket for electric discharge tubes with pin bases
AT176268B
(en )
1953-10-10
Electric discharge tube
AT177844B
(en )
1954-03-10
Cathode bodies for electric discharge tubes
CH298666A
(en )
1954-05-15
Electric discharge tube with outer anode and zirconium trap.
CH291654A
(en )
1953-06-30
Electric discharge tube.
CH270976A
(en )
1950-09-30
Electric discharge tube with an indirectly heatable cathode.
AT181000B
(en )
1955-02-10
Electric discharge tube with gold-plated contact elements
AT182783B
(en )
1955-08-10
Electric lamp or discharge tube
AT177845B
(en )
1954-03-10
Cathode bodies for electric discharge tubes
CH303448A
(en )
1954-11-30
Electric lamp.
CH290128A
(en )
1953-04-15
Electrode for low-pressure electric discharge tubes.
DE1700107U
(en )
1955-06-08
ELECTRIC DISCHARGE TUBE WITH INDIRECTLY HEATABLE CATHODE.
AT167787B
(en )
1951-02-26
Electrode for electric discharge tubes
AT183478B
(en )
1955-10-10
Electric lamp with discharge tubes