DK58988C
(en )
1941-09-01
Electric Discharge Tube with Secondary Emission Electrode and Method of Manufacturing.
DK58371C
(en )
1941-01-27
Electric Discharge Tube with Secondary Emission Electrode and Method of Manufacturing.
DK57590C
(en )
1940-05-14
Electric Discharge Tube with Secondary Emission Electrode and Procedure for its Manufacture.
DK58626C
(en )
1941-04-28
Method of Manufacturing an Electric Discharge Pipe with a Secondary Emission Electrode.
DK66011C
(en )
1947-12-08
Glow electrode for electric discharge tubes and Procedure for its manufacture.
DK59049C
(en )
1941-09-22
Electric Discharge Tube with Secondary Emission Electrode.
DK57591C
(en )
1940-05-14
Electric Discharge Tube with Photocathode and Grid-shaped Secondary Emission Electrodes.
DK57563C
(en )
1940-05-06
Electric Discharge Tube with Photocathode and Grid-shaped Secondary Emission Electrodes.
DK61853C
(en )
1944-01-31
Oxide cathode for electric discharge tubes and method for its manufacture.
DK56111C
(en )
1939-05-01
Electric Discharge Tube with Secondary Emission Electrode.
DK56600C
(en )
1939-08-28
Electric Discharge Tube with Secondary Emission Electrode.
DK61534C
(en )
1943-11-08
Iron electrode for electric discharge tubes and method for its manufacture.
DK56599C
(en )
1939-08-28
Method of Manufacturing an Electric Discharge Pipe with a Secondary Emission Electrode.
DK56084C
(en )
1939-04-24
Cathode ray tube and method of its manufacture.
FR811591A
(en )
1937-04-17
Improvements made to electric discharge tubes, in particular to amplifying lamps, and to assemblies which include them
DK64709C
(en )
1946-08-19
Electron Tube with a Secondary Emission Electrode and Method of Manufacturing the Electrode.
DK58967C
(en )
1941-08-25
Electrical Imaging Tube and Method for Manufacturing Its Retinal Electrode.
DK55927C
(en )
1939-03-13
Electric Discharge Tube with Metal Wall and Method for Manufacturing Its Connecting Body.
DK58107C
(en )
1940-10-28
Method of Manufacturing an Electric Discharge Pipe with a Secondary Emission Electrode.
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.
DK55504C
(en )
1938-11-28
Electrode with Carbon Layer for Electric Discharge Tubes and Procedure for Its Manufacture.
DK51234C
(en )
1936-02-03
Electrode for Electric Discharge Tubes and Procedure for Manufacturing the Electrode.
DK63025C
(en )
1944-12-18
Method of Manufacturing Electric Discharge Pipes and Discharge Lamps.
AT156070B
(en )
1939-05-10
Electric gas discharge tube.