CH314129A
(en )
1956-05-31
Cathode bodies for electric discharge tubes
CH319033A
(en )
1957-01-31
Cathode for an electric discharge tube
CH314776A
(en )
1956-06-30
Cathode bodies for electric discharge tubes
NL155678B
(en )
ELECTRIC TUNGSTEN / BROMINE CYCLE LAMP.
CH305872A
(en )
1955-03-15
Cathode for electrical discharge vessels.
CH315203A
(en )
1956-07-31
Cathode for electrical discharge vessels
CH314128A
(en )
1956-05-31
Activated electrode for electrical discharge vessels
FR1017940A
(en )
1952-12-22
Thermionic cathode
CH262907A
(en )
1949-07-31
Disc-shaped, indirectly heated cathode for electrical discharge tubes.
AT171917B
(en )
1952-07-25
Indirect heated cathode for electrical discharge tubes
CH312426A
(en )
1955-12-31
Electric discharge tube.
AT178402B
(en )
1954-05-10
Oxide cathode for electric discharge tubes
AT178147B
(en )
1954-04-10
Cathode for electric discharge tubes with an operating temperature exceeding 1000 ° C
CH314200A
(en )
1956-05-31
Oxide cathode for electric discharge tubes
AT177844B
(en )
1954-03-10
Cathode bodies for electric discharge tubes
CH293278A
(en )
1953-09-15
Electric discharge tube.
AT176614B
(en )
1953-11-10
Electric discharge tube
CH290128A
(en )
1953-04-15
Electrode for low-pressure electric discharge tubes.
AT173749B
(en )
1953-01-26
Socket for electric discharge tubes with pin bases
AT169977B
(en )
1951-12-27
Fluorescent material, preferably for an electric discharge tube
AT177845B
(en )
1954-03-10
Cathode bodies for electric discharge tubes
AT167787B
(en )
1951-02-26
Electrode for electric discharge tubes
CH305546A
(en )
1955-02-28
Cathode for electrical discharge vessels.
CH312786A
(en )
1956-02-29
Cathode for electrical discharge vessels
AT174679B
(en )
1953-04-25
Electric discharge tube with flat electrodes