4. Pipes and tubular conduits
  5. Combined

Leo Eichelberger

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Double-walled, flexible hose

Pipes and tubular conduits – Flexible – Spirally wound material
Patent

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Vacuum cleaner hose

Pipes and tubular conduits – Combined
Patent

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Vacuum cleaner hose with an electrical conductor

Electricity: conductors and insulators – Combined fluid conduit and electrical conductor
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Profile ID: LFUS-PAI-P-780156

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