LandOfFree - US Patents - Listing for Electric lamp and discharge devices,With gas or vapor,Envelope composition

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Low sodium permeability glass

Electric lamp and discharge devices – With gas or vapor – Envelope composition

Patent

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Metal halide discharge lamp with a quartz discharge vessel and a

Electric lamp and discharge devices – With gas or vapor – Envelope composition

Patent

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Nitride sintered body and method for manufacturing thereof

Electric lamp and discharge devices – With gas or vapor – Envelope composition

Reexamination Certificate

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Nitride sintered body and method for manufacturing thereof

Electric lamp and discharge devices – With gas or vapor – Envelope composition

Reexamination Certificate

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Quartz glass with reduced ultraviolet radiation transmissivity,

Electric lamp and discharge devices – With gas or vapor – Envelope composition

Patent

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Short-arc discharge lamp

Electric lamp and discharge devices – With gas or vapor – Envelope composition

Patent

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Translucent polycrystalline alumina and method of making same

Electric lamp and discharge devices – With gas or vapor – Envelope composition

Patent

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Ultraviolet and visible filter for ceramic arc tube body

Electric lamp and discharge devices – With gas or vapor – Envelope composition

Reexamination Certificate

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UV absorbing fused quartz and its use for lamp envelopes

Electric lamp and discharge devices – With gas or vapor – Envelope composition

Patent

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UV absorbing lamp glass

Electric lamp and discharge devices – With gas or vapor – Envelope composition

Patent

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