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BE362220A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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US3855491A
(en)
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Hollow cathode discharge lamp for generating radiation characteristic of the gas fill within the envelope
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US2081415A
(en)
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Electron emitter
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US2039772A
(en)
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Electric radiation device
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US1858676A
(en)
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Cathode
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US2069832A
(en)
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Electric discharge device
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JP2021015669A
(ja)
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マグネトロン
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BE381768A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE332348A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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US1982317A
(en)
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Electrical conductor for electron discharge tubes
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BE360364A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE368100A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE346603A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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US1647617A
(en)
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Electron-discharge device
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BE546042A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE409755A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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GB325030A
(en)
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Improvements in vacuum electric tube devices
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BE472146A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE376006A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE370118A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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GB315375A
(en)
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Improvements relating to electron discharge devices
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CH130992A
(fr)
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Lampe électronique.
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CH88826A
(fr)
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Dispositif à décharge d'électrons.
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BE331723A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE392252A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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