CH314129A
(en )
1956-05-31
Cathode bodies for electric discharge tubes
CH314776A
(en )
1956-06-30
Cathode bodies for electric discharge tubes
CH319033A
(en )
1957-01-31
Cathode for an electric discharge tube
CH305872A
(en )
1955-03-15
Cathode for electrical discharge vessels.
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
FR1075165A
(en )
1954-10-13
Cathode for electric discharge tube
AT177844B
(en )
1954-03-10
Cathode bodies for electric discharge tubes
CH312426A
(en )
1955-12-31
Electric discharge tube.
AT177845B
(en )
1954-03-10
Cathode bodies for electric discharge tubes
CH345392A
(en )
1960-03-31
Cathode body for an electric discharge tube
AT198374B
(en )
1958-06-25
Switching arrangement for electric discharge tubes
AT183479B
(en )
1955-10-10
Electrode for discharge tubes
AT176614B
(en )
1953-11-10
Electric discharge tube
CH312786A
(en )
1956-02-29
Cathode for electrical discharge vessels
CH305546A
(en )
1955-02-28
Cathode for electrical discharge vessels.
CH290128A
(en )
1953-04-15
Electrode for low-pressure electric discharge tubes.
AT187993B
(en )
1956-12-10
Cathode body for an electric discharge tube
AT177843B
(en )
1954-03-10
Cathode for electrical discharge vessels
AT177842B
(en )
1954-03-10
Cathode for electrical discharge vessels
AT175317B
(en )
1953-06-25
Cathode for electrical discharge vessels
AT174992B
(en )
1953-05-26
Cathode for electrical discharge vessels
CH320913A
(en )
1957-04-15
Cathode for electrical discharge vessels
FR1050917A
(en )
1954-01-12
Cathode for electric discharge tubes