FR817567A
(en )
1937-09-06
Multistage secondary electron amplifier
DK55039C
(en )
1938-08-01
Electrode with Strong Secondary Emission Capacity and Method of Manufacturing.
CH201280A
(en )
1938-11-30
Electrode.
FR825786A
(en )
1938-03-14
electrode
SU47725A1
(en )
1936-07-31
Method of making microporous separators
SU47758A1
(en )
1936-07-31
Method of making electrodes
DK58371C
(en )
1941-01-27
Electric Discharge Tube with Secondary Emission Electrode and Method of Manufacturing.
DK55504C
(en )
1938-11-28
Electrode with Carbon Layer for Electric Discharge Tubes and Procedure for Its Manufacture.
DK52008C
(en )
1936-08-10
Electrode system with Selenium electrode.
FR830355A
(en )
1938-07-28
Multistage secondary electron amplifier
FR814401A
(en )
1937-06-23
Secondary electron amplifier
DK55445C
(en )
1938-11-14
Retinal Electrode for Television and Procedure for its Manufacture.
DK53932C
(en )
1937-11-29
Incandescent socket and method of manufacture.
DK53893C
(en )
1937-11-22
Coupling to Glow Cathode Rectifiers with Related Resistance and Procedure for its Manufacture.
FR807987A
(en )
1937-01-26
Advanced cage bed
AT155481B
(en )
1939-01-25
Seed separator.
FR800380A
(en )
1936-07-03
Incandescent cathode ion valve
ES131674A1
(en )
1933-10-16
Improvements in the manufacture of electronic tubes or valves with cathode, anode and four interposed grid electrodes.
DK58988C
(en )
1941-09-01
Electric Discharge Tube with Secondary Emission Electrode and Method of Manufacturing.
FR46316E
(en )
1936-04-30
Tar-bitumens and their manufacture
ES132037A1
(en )
1933-11-16
Method of manufacturing an electrolyte.
DK56484C
(en )
1939-07-31
Electrode.
DK53264C
(en )
1937-07-05
Method for Manufacturing Large Surface Electrodes for Alkaline Accumulators.
FR805607A
(en )
1936-11-25
Point incandescent cathodes
DK53465C
(en )
1937-08-16
Fluorescence screen and method of its manufacture.