4. Pipes and tubular conduits
  5. Distinct layers
  6. With intermediate insulation layer

Marc Lessard

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Insulating air conduit

Pipes and tubular conduits – Distinct layers – With intermediate insulation layer
Reexamination Certificate

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Method of construction of an insulating air conduit

Metal working – Method of mechanical manufacture – Assembling or joining
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2114843

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