4. Electric lamp and discharge devices
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Tungsten-halogen incandescent lamp containing additive to reduce

Electric lamp and discharge devices – With gas or vapor – Incandescent filament lamp
Patent

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Tungsten-halogen lamp with means for reducing filament embrittle

Electric lamp and discharge devices – With gas or vapor – Incandescent filament lamp
Patent

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Tungsten-halogen lamp with organic and inorganic getters

Electric lamp and discharge devices – With gas or vapor – Incandescent filament lamp
Patent

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Tungsten-halogen lamp with preferential tungsten deposition site

Electric lamp and discharge devices – With gas or vapor – Incandescent filament lamp
Patent

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Vacuum sealed incandescent lamp with improved filament support s

Electric lamp and discharge devices – With gas or vapor – Incandescent filament lamp
Patent

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Vacuum-sealed silicon incandescent light

Electric lamp and discharge devices – With gas or vapor – Incandescent filament lamp
Patent

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