4. Illumination
  5. Miscellaneous attachments and fittings

Yasuo Hirasawa

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Circular fluorescent lamp with oval section of tube

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

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Lighting lamp

Illumination – Modifier mountable on light source envelope
Patent

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Lighting lamp

Illumination – Miscellaneous attachments and fittings
Patent

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Profile ID: LFUS-PAI-P-42599

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