4. Geometrical instruments

Wallace T. MacDonald

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Adapter for mounting a fluorescent lamp in an incandescent lamp

Geometrical instruments
Patent

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Compact fluorescent lamp

Lighting – Light source – Electric light bulb
Patent

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Compact fluorescent lamp assembly having improved thermal dissip

Electric lamp and discharge devices: systems – Combined load device or load device temperature modifying... – Discharge device load
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Compact fluorescent reflector lamp

Lighting – Light source – Electric light bulb
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Profile ID: LFUS-PAI-P-223448

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