CH220849A
(en )
1942-04-30
Cathode ray tube.
FR938632A
(en )
1948-10-20
Improvements to magnetron thermionic tubes
CH242721A
(en )
1946-05-31
Electron tube with a secondary emission electrode.
CH255241A
(en )
1948-06-15
Cathode ray tube.
CH260721A
(en )
1949-03-31
Cathode ray tube for polar coordinate recording.
CH239103A
(en )
1945-09-15
X-ray tube with rotating anode.
DK62717C
(en )
1944-09-25
Electron tubes with low anode secondary emission.
CH219292A
(en )
1942-01-31
Cathode ray tube with magnetic focusing.
FR932387A
(en )
1948-03-19
Cathode ray tubes
CH218678A
(en )
1941-12-31
Cathode ray tube.
NL51881C
(en )
1942-02-16
Electron tube, provided with a secondary emission electrode
CH227470A
(en )
1943-06-15
Secondary emission image intensifier.
DK66506C
(en )
1948-03-30
Electron tube with artificially cooled Anode.
CH219006A
(en )
1942-01-15
Cathode ray tube.
DK59049C
(en )
1941-09-22
Electric Discharge Tube with Secondary Emission Electrode.
FR888699A
(en )
1943-12-20
Electron tube with low anode secondary emission
CH260192A
(en )
1949-02-28
Electron tube with a secondary emission electrode.
DK66498C
(en )
1948-03-30
Cathode ray tube with low electron velocity.
CH230146A
(en )
1943-12-15
Electron tube.
CH211724A
(en )
1940-10-15
Cathode ray tube.
DK64709C
(en )
1946-08-19
Electron Tube with a Secondary Emission Electrode and Method of Manufacturing the Electrode.
DK64524C
(en )
1946-06-03
Mixing coupling with electron tube.
CH221977A
(en )
1942-06-30
Cathode ray polar tube.
DK65666C
(en )
1947-09-22
X-ray tube with Swivel anode for AC voltage.
DK56465C
(en )
1939-07-24
Cathode ray tube.