CH207921A
(en )
1939-12-15
Method of manufacturing an electric discharge tube with a secondary emission electrode.
DK56599C
(en )
1939-08-28
Method of Manufacturing an Electric Discharge Pipe with a Secondary Emission Electrode.
DK58626C
(en )
1941-04-28
Method of Manufacturing an Electric Discharge Pipe with a Secondary Emission Electrode.
DK58107C
(en )
1940-10-28
Method of Manufacturing an Electric Discharge Pipe with a Secondary Emission Electrode.
CH217330A
(en )
1941-10-15
Electric discharge tube with one or more secondary emission electrodes.
DK56540C
(en )
1939-08-14
Electric Discharge Tube for Generating a Current of Rapid Ions.
DK58128C
(en )
1940-11-04
Method for Manufacturing a Secondary Emission Electrode in an Electric Discharge Pipe.
DK66955C
(en )
1948-06-07
Method of Manufacturing a Photoelectric Electrode for Electric Discharge Tubes.
DK57660C
(en )
1940-06-03
Method of Manufacturing an Electric Discharge Pipe.
DK58371C
(en )
1941-01-27
Electric Discharge Tube with Secondary Emission Electrode and Method of Manufacturing.
DK56194C
(en )
1939-05-22
Electric Discharge Tube with a Secondary Emission Electrode.
DK56347C
(en )
1939-06-26
Electric Discharge Tube with a Secondary Emission Electrode.
DK56600C
(en )
1939-08-28
Electric Discharge Tube with Secondary Emission Electrode.
DK56111C
(en )
1939-05-01
Electric Discharge Tube with Secondary Emission Electrode.
DK59049C
(en )
1941-09-22
Electric Discharge Tube with Secondary Emission Electrode.
CH201099A
(en )
1938-11-15
Electric discharge tube with a secondary emission electrode.
DK58988C
(en )
1941-09-01
Electric Discharge Tube with Secondary Emission Electrode and Method of Manufacturing.
DK66090C
(en )
1947-12-22
Electric Discharge Tube with a Secondary Emission Electrode.
DK58567C
(en )
1941-04-07
Coupling with a Discharge Tube containing a Secondary Emission Electrode for Gain.
ES143715A1
(en )
1938-01-16
A method of manufacturing an electrical discharge device.
DK58808C
(en )
1941-06-30
Electric Discharge Tube with a Secondary Emission Electrode.
DK63958C
(en )
1945-09-24
Method of Manufacturing an Electric Discharge Tank.
DK67559C
(en )
1948-09-06
Method for manufacturing an electron tube with at least one photocathode and at least one secondary emission electrode.
AU105556B2
(en )
1938-11-03
Improved method of manufacturing electrodes with a high secondary emission
CH208636A
(en )
1940-02-15
Method of manufacturing an electric discharge tube with a secondary emission electrode.