CH233012A
(en )
1944-06-30
Apparatus comprising an electric discharge tube with an electron mirror electrode.
CH224049A
(en )
1942-10-31
Electric discharge tube.
DK62362C
(en )
1944-06-19
Electric Discharge Tube with Indirect Heated Cathode.
CH218678A
(en )
1941-12-31
Cathode ray tube.
CH232757A
(en )
1944-06-15
X-ray tube with rotating anode.
CH219824A
(en )
1942-02-28
Tube.
CH231981A
(en )
1944-04-30
X-ray tube with rotating anode.
DK59049C
(en )
1941-09-22
Electric Discharge Tube with Secondary Emission Electrode.
CH225248A
(en )
1943-01-15
Electric discharge tube.
FR873065A
(en )
1942-06-29
Electric discharge tube
DK64451C
(en )
1946-04-29
Electric Discharge Tube with at least two Control Grids.
CH224055A
(en )
1942-10-31
Cathode ray tube with indirectly heated cathode.
CH233017A
(en )
1944-06-30
Electric discharge tube.
CH232760A
(en )
1944-06-15
Electric discharge tube.
DK65521C
(en )
1947-08-18
Electric Discharge Tube with Indirect Heated Cathode and Method for Manufacturing the Cathode.
CH221451A
(en )
1942-05-31
Cathode ray tube with directly heated cathode.
DK62747C
(en )
1944-10-02
Electric Radiation Lamps.
DK65666C
(en )
1947-09-22
X-ray tube with Swivel anode for AC voltage.
DK62996C
(en )
1944-12-11
Electric Discharge Tube with Pressed Glass Foot.
DK65318C
(en )
1947-01-13
Electric Discharge Tube with Double Control.
DK61975C
(en )
1944-02-28
Coupling with electric Gaseous discharge tube.
DK63279C
(en )
1945-03-19
Brown pipe with indirectly heated cathode.
DK65758C
(en )
1947-10-20
Cathode for electric discharge pipes.
FR873821A
(en )
1942-07-21
Electric discharge tube
FR871520A
(en )
1942-04-29
Electric discharge tube