4. Pipes and tubular conduits
  5. Flexible
  6. Spirally wound material

Walter F. Kelly

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Method of making two ply duct core

Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent

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Two-ply duct core

Pipes and tubular conduits – Flexible – Spirally wound material
Patent

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Profile ID: LFUS-PAI-P-1246911

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