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
CH344139A
(en )
1960-01-31
Supply cathode for electric discharge tubes
CH315203A
(en )
1956-07-31
Cathode for electrical discharge vessels
CH314128A
(en )
1956-05-31
Activated electrode for electrical discharge vessels
CH383508A
(en )
1964-10-31
Indirectly heated cathode for electrical discharge tubes
AT198374B
(en )
1958-06-25
Switching arrangement for electric discharge tubes
CH312426A
(en )
1955-12-31
Electric discharge tube.
CH345392A
(en )
1960-03-31
Cathode body for an electric discharge tube
AT193018B
(en )
1957-11-25
Glow electrode for electric low-pressure discharge tubes
AT183479B
(en )
1955-10-10
Electrode for discharge tubes
CH339294A
(en )
1959-06-30
Electric discharge lamp
AT206526B
(en )
1959-12-10
Holding device for electric discharge tubes
AT187993B
(en )
1956-12-10
Cathode body for an electric discharge tube
CH342296A
(en )
1959-11-15
Electric cold cathode gas discharge tube
AT177844B
(en )
1954-03-10
Cathode bodies for electric discharge tubes
CH312786A
(en )
1956-02-29
Cathode for electrical discharge vessels
CH326003A
(en )
1957-11-30
Wire electrode for electric vapor and / or gas discharge lamps
CH290128A
(en )
1953-04-15
Electrode for low-pressure electric discharge tubes.
AT190162B
(en )
1957-06-11
Electrode socket for gas discharge tubes
CH319769A
(en )
1957-02-28
Electrode for discharge vessels
AT177845B
(en )
1954-03-10
Cathode bodies for electric discharge tubes
CH320913A
(en )
1957-04-15
Cathode for electrical discharge vessels
AT168459B
(en )
1951-06-11
Electrode for electric discharge tubes