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Large, indirectly heated, oxide-coated cathode for producing uni

Electric lamp and discharge devices – Discharge devices having a thermionic or emissive cathode
Patent

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Lateral field emission devices for display elements and methods

Electric lamp and discharge devices – Discharge devices having a thermionic or emissive cathode
Patent

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Lateral field emission devices for display elements and methods

Electric lamp and discharge devices – Discharge devices having a thermionic or emissive cathode
Patent

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Light emitting device and display device using the same

Electric lamp and discharge devices – Discharge devices having a thermionic or emissive cathode
Reexamination Certificate

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Low gate current field emitter cell and array with vertical...

Electric lamp and discharge devices – Discharge devices having a thermionic or emissive cathode
Reexamination Certificate

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Low voltage electron source with self aligned gate...

Electric lamp and discharge devices – Discharge devices having a thermionic or emissive cathode
Reexamination Certificate

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