DK76786C -
Cathode for electric discharge tubes with an alkaline earth metal compound containing porous body of refractory metal, and methods for its manufacture.
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Cathode for electric discharge tubes with an alkaline earth metal compound containing porous body of refractory metal, and methods for its manufacture.
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DK40852A1951-02-081952-02-05
Cathode for electric discharge tubes with an alkaline earth metal compound containing porous body of refractory metal, and methods for its manufacture.
DK76786C
(en)
Cathode for electric discharge tubes with an alkaline earth metal compound containing porous body of refractory metal, and methods for its manufacture.
Cathode for electric discharge tubes with an alkaline earth metal compound containing porous body of refractory metal, and methods for its manufacture.