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Outdoor electroluminescent display devices

Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Reexamination Certificate

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Outer electrode for spark plug and a method of manufacturing the

Electric lamp and discharge devices – With temperature modifier – Spark plug type
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Outer jacket leak detection method and ballast implementing...

Electric lamp and discharge devices – With gas or vapor – Having electrode lead-in or electrode support sealed to...
Reexamination Certificate

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Over voltage arrester

Electric lamp and discharge devices – With temperature modifier – For lead-in-seal or stem protection
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Overload protection tube

Electric lamp and discharge devices – Miscellaneous discharge devices
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Overvoltage discharger for coaxial cables and method of making s

Electric lamp and discharge devices – With gas or vapor – Having a particular total or partial pressure
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Overvoltage protecting element

Electric lamp and discharge devices – Miscellaneous discharge devices
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Overvoltage protecting element

Electric lamp and discharge devices – Miscellaneous discharge devices
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Overvoltage protection device with concentric arcing horns

Electric lamp and discharge devices – With gas or vapor – Having electrodes with geometrical relationship
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Overvoltage protection element

Electric lamp and discharge devices – With gas or vapor – Having electrodes with geometrical relationship
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Oxidation resistant impregnated cathode

Electric lamp and discharge devices – Electrode and shield structures – Cathodes containing and/or coated with electron emissive...
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Oxide cathode

Electric lamp and discharge devices – Electrode and shield structures – Cathodes containing and/or coated with electron emissive...
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Oxide cathode

Electric lamp and discharge devices – Electrode and shield structures – Cathodes containing and/or coated with electron emissive...
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Oxide cathode

Electric lamp and discharge devices – Electrode and shield structures – Cathodes containing and/or coated with electron emissive...
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Oxide cathode

Electric lamp and discharge devices – Electrode and shield structures – Cathodes containing and/or coated with electron emissive...
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Oxide cathode

Electric lamp and discharge devices – Electrode and shield structures – Cathodes containing and/or coated with electron emissive...
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Oxide cathode employing Ba evaporation restraining layer

Electric lamp and discharge devices – Electrode and shield structures – Cathodes containing and/or coated with electron emissive...
Patent

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Oxide cathode for an electron gun, having a denser and...

Electric lamp and discharge devices – Electrode and shield structures – Cathodes containing and/or coated with electron emissive...
Reexamination Certificate

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Oxide cathode for electron gun with a differentially doped...

Electric lamp and discharge devices – Electrode and shield structures – Cathodes containing and/or coated with electron emissive...
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Oxide cathode with rare earth addition

Electric lamp and discharge devices – Electrode and shield structures – Cathodes containing and/or coated with electron emissive...
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