CH386563A
(en )
1965-01-15
Electric discharge lamp
CH319033A
(en )
1957-01-31
Cathode for an electric discharge tube
CH365448A
(en )
1962-11-15
Electric noble gas high pressure discharge lamp
CH397092A
(en )
1965-08-15
Cathode for an electric discharge tube
CH314128A
(en )
1956-05-31
Activated electrode for electrical discharge vessels
CH386562A
(en )
1965-01-15
Electric arc gas discharge lamp
CH326003A
(en )
1957-11-30
Wire electrode for electric vapor and / or gas discharge lamps
CH316524A
(en )
1956-10-15
Spark chamber for electrical switches
CH345392A
(en )
1960-03-31
Cathode body for an electric discharge tube
CH383508A
(en )
1964-10-31
Indirectly heated cathode for electrical discharge tubes
CH339294A
(en )
1959-06-30
Electric discharge lamp
AT187993B
(en )
1956-12-10
Cathode body for an electric discharge tube
AT183479B
(en )
1955-10-10
Electrode for discharge tubes
AT193018B
(en )
1957-11-25
Glow electrode for electric low-pressure discharge tubes
CH406448A
(en )
1966-01-31
Grid electrode for electric discharge tubes
CH342647A
(en )
1959-11-30
Electric lamp or discharge tube
AT181668B
(en )
1955-04-12
Electric discharge tube
CH355519A
(en )
1961-07-15
Electric incandescent lamp for projection purposes
CH333680A
(en )
1958-10-31
Insulating body for high voltage devices
AT196007B
(en )
1958-02-25
Electric incandescent lamp or discharge tube
AT197484B
(en )
1958-04-25
Electric incandescent lamp or discharge tube
AT189714B
(en )
1957-04-25
Electric high pressure gas discharge lamp
CH290128A
(en )
1953-04-15
Electrode for low-pressure electric discharge tubes.
AT183478B
(en )
1955-10-10
Electric lamp with discharge tubes
AT178673B
(en )
1954-06-10
Electric discharge tube with gas and / or vapor filling