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Light-emitting display panel

Electric lamp and discharge devices – With optical device or special ray transmissive envelope – Polarizer or special ray transmission
Patent

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Light-pervious, heat-reflecting filter and electric lamps having

Electric lamp and discharge devices – With optical device or special ray transmissive envelope – Polarizer or special ray transmission
Patent

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Light-scattering coating, its preparation and use

Electric lamp and discharge devices – With optical device or special ray transmissive envelope – Light diffusing
Patent

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Light-transmitting, thermal-radiation reflecting filter

Electric lamp and discharge devices – With optical device or special ray transmissive envelope – Polarizer or special ray transmission
Patent

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Lighting apparatus using microwave

Electric lamp and discharge devices – With optical device or special ray transmissive envelope – Reflector
Reexamination Certificate

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Lighting unit with reflecting mirror

Electric lamp and discharge devices – With optical device or special ray transmissive envelope – Reflector
Reexamination Certificate

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Low wattage lamp having formed arc tube in aluminosilicate outer

Electric lamp and discharge devices – With optical device or special ray transmissive envelope – Reflector
Patent

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Low-pressure mercury vapor discharge lamp

Electric lamp and discharge devices – With optical device or special ray transmissive envelope – Reflector
Patent

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Low-pressure mercury vapor discharge lamp with internal glass fi

Electric lamp and discharge devices – With optical device or special ray transmissive envelope – Reflector
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Low-pressure sodium vapor discharge lamp

Electric lamp and discharge devices – With optical device or special ray transmissive envelope – Plural diverse optical devices
Patent

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Low-pressure sodium vapor discharge lamp

Electric lamp and discharge devices – With optical device or special ray transmissive envelope – Reflector
Patent

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Luminaire incorporating arc tube preheater

Electric lamp and discharge devices – With optical device or special ray transmissive envelope – Reflector
Reexamination Certificate

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Luminous display element including an optical member for...

Electric lamp and discharge devices – With optical device or special ray transmissive envelope
Reexamination Certificate

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