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Electric gas discharge lamp having two superposed luminescent la

Electric lamp and discharge devices – With luminescent solid or liquid material – With gaseous discharge medium
Patent

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Electric gas discharge lamp including an outer envelope and supp

Electric lamp and discharge devices – With temperature modifier – Double wall – jacket or casing for envelope
Patent

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Electric halogen incandescent lamp

Electric lamp and discharge devices – With support and/or spacing structure for electrode and/or... – For plural electrodes of discharge device
Patent

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Electric high-pressure discharge lamp

Electric lamp and discharge devices – With gas or vapor – Having particular electrode structure
Reexamination Certificate

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Electric incandescent and discharge lamps having doped quartz gl

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

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Electric incandescent halogen lamp with barrel-shaped bulb

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

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Electric incandescent lamp

Electric lamp and discharge devices – With envelope – Having base and connector
Patent

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Electric incandescent lamp

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

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Electric incandescent lamp

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

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Electric incandescent lamp

Electric lamp and discharge devices – With envelope – Having base and connector
Patent

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Electric incandescent lamp

Electric lamp and discharge devices – Liquid electrode discharge devices – Auxiliary starting or holding electrode
Patent

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Electric incandescent lamp

Electric lamp and discharge devices – Incandescent lamps
Patent

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Electric incandescent lamp

Electric lamp and discharge devices – With support and/or spacing structure for electrode and/or... – For filament
Patent

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Electric incandescent lamp

Electric lamp and discharge devices – Electrode and shield structures – Filament or resistance heated electrodes
Patent

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Electric incandescent lamp

Electric lamp and discharge devices – With support and/or spacing structure for electrode and/or... – For filament
Patent

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Electric incandescent lamp

Electric lamp and discharge devices – With support and/or spacing structure for electrode and/or... – For filament
Patent

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Electric incandescent lamp

Electric lamp and discharge devices – With support and/or spacing structure for electrode and/or... – For filament
Patent

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Electric incandescent lamp

Electric lamp and discharge devices – With support and/or spacing structure for electrode and/or... – For filament
Patent

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Electric incandescent lamp

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

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Electric incandescent lamp

Electric lamp and discharge devices – With support and/or spacing structure for electrode and/or... – For plural electrodes of discharge device
Patent

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