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Application filed by Lorenz C AgfiledCriticalLorenz C Ag
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Publication of DK58684CpublicationCriticalpatent/DK58684C/en
H01J5/08—Vessels; Containers; Shields associated therewith; Vacuum locks provided with coatings on the walls thereof; Selection of materials for the coatings
DK58684D1939-03-241940-03-08
High Frequency Electron Tubes in which the Vacuum Container consists wholly or partly of ferromagnetic material.
DK58684C
(en)