4. Electric lamp and discharge devices
  5. Electrode and shield structures
  6. Filament or resistance heated electrodes
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Cathode for an electron source and a method of producing the sam

Electric lamp and discharge devices – Electrode and shield structures – Filament or resistance heated electrodes
Patent

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Cathode structure for magnetron

Electric lamp and discharge devices – Electrode and shield structures – Filament or resistance heated electrodes
Patent

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Coil filament

Electric lamp and discharge devices – Electrode and shield structures – Filament or resistance heated electrodes
Reexamination Certificate

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Compact incandescent coiled coil filament

Electric lamp and discharge devices – Electrode and shield structures – Filament or resistance heated electrodes
Patent

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Composite vacuum evaporation coil

Electric lamp and discharge devices – Electrode and shield structures – Filament or resistance heated electrodes
Patent

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Concave conical foil-filament lamp

Electric lamp and discharge devices – Electrode and shield structures – Filament or resistance heated electrodes
Patent

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