CH239109A
(en )
1945-09-15
High pressure electric discharge tube.
DK70266C
(en )
1949-11-28
Electric discharge tube with fluorescent material and a method for producing fluorescent material for use in such a tube.
FR948341A
(en )
1949-07-28
Advanced discharge tube
DK66770C
(en )
1948-05-10
Electric Discharge Tube with a Fluorescent Screen and Method for Making a Fluorescent Material for Use in the Screen.
CH233392A
(en )
1944-07-31
Amalgamation and disamalgamation apparatus.
ES176090A1
(en )
1947-01-16
IMPROVEMENTS IN ELECTRONIC DISCHARGE APPARATUS
DK67601C
(en )
1948-09-13
Electric discharge tube with a fluorescent substance and method of manufacturing the fluorescent substance.
DK71337C
(en )
1950-08-07
Electric radiation source with a luminescent material and method of manufacturing the material.
CH234242A
(en )
1944-09-15
Electric discharge tube.
DK70523C
(en )
1950-01-23
Process for the manufacture of a closed container, in particular for electric discharge tubes and incandescent lamps.
DK65522C
(en )
1947-08-18
Electrical Discharge Tube and Method for Manufacturing a Centering Plate for the Electrode System.
DK65521C
(en )
1947-08-18
Electric Discharge Tube with Indirect Heated Cathode and Method for Manufacturing the Cathode.
DK67112C
(en )
1948-06-28
Directly heated glow cathode and ultra-shortwave tube with such.
DK59210C
(en )
1941-11-17
Apparatus with an electric Multiplier type discharge tube.
DK68342C
(en )
1949-01-10
Apparatus with an electric discharge tube and an electric discharge tube for use in such apparatus.
CH240681A
(en )
1946-01-15
Ion discharge tube.
DK60967C
(en )
1943-05-31
Apparatus with an electric Gaseous discharge tube.
DK77349C
(en )
1954-04-05
Electric discharge tube with a luminescent material and method of making luminescent material suitable for use in the discharge tube.
DK66043C
(en )
1947-12-15
Ion discharge tube with Mercury cathode and floating igniter.
CH243222A
(en )
1946-06-30
High pressure electric discharge tube.
ES154348A1
(en )
1943-03-01
IMPROVEMENTS INTRODUCED IN THE PESACARTAS APPARATUS
DK71302C
(en )
1950-07-31
Phosphate-containing fluorescent material and process for the preparation of the same.
DK64794C
(en )
1946-09-16
Radiation source consisting of an electric gaseous discharge tube and a luminescent layer.
DK61377C
(en )
1943-10-04
Method and Apparatus for Manufacturing Separators for Accumulators.
DK63530C
(en )
1945-05-28
Apparatus for Use in Telecommunications.