4. Lighting
  5. Light source
  6. Electric light bulb

Jürgen Gräf

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Compact fluorescent lamp

Lighting – Light source – Electric light bulb
Design Patent

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Electric lamp

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

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Electric lamp having an outer bulb

Electric lamp and discharge devices – With gas or vapor – Envelope with particular structure
Reexamination Certificate

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Electric lamp which is closed on two sides

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

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Electric lamp which is closed on two sides

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

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Profile ID: LFUS-PAI-P-2343982

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