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SU625578A3
(ru)
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Опорный элемент стула
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BE409144A
(enrdf_load_html_response)
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US2433410A
(en)
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Tube construction
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US2992314A
(en)
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Electric heater assembly
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US2464272A
(en)
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Electrode assembly for electron space discharge device
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US1980936A
(en)
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Electron discharge tube
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US2467390A
(en)
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Filament support for electric space discharge tubes
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US2047944A
(en)
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Space discharge tube
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US2324367A
(en)
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Electron discharge device
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US1758803A
(en)
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Vacuum tube
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US2052882A
(en)
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Vacuum tube elements assembly
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US1869568A
(en)
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Pentode tube
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US2160044A
(en)
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Electrode spacer
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US2872609A
(en)
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Cathode-grid spacing means
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US2778969A
(en)
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Grid stop
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US2181080A
(en)
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Double diode
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US1662032A
(en)
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Filament support for vacuum tubes
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US2064865A
(en)
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Electronic vacuum tube
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US2005257A
(en)
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Vacuum tube grid
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US2898503A
(en)
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Filamentary stacked triode
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CH112865A
(fr)
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Dispositif de support d'une grille en fil, formée d'une série de spires, dans un tube électrique à vide.
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GB231225A
(en)
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Improvements in vacuum electric tube devices
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US2572031A
(en)
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Electrode and envelope assembly for multielectrode space discharge devices
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US2178837A
(en)
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Mount support for electron-discharge tubes
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US1896464A
(en)
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Electron discharge device
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