4. H - Electricity
  5. 01
  6. J

Pierre Devaux

H - Electricity – 01 – J

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Incandescent lamp having an internally screened filament

H - Electricity – 01 – J
Patent

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Method of manufacturing electric filament lamps

H - Electricity – 01 – J
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Self-locking releasable nut

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Profile ID: LFCA-PAI-P-371308

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