4. Pipe joints or couplings
  5. Frangible element
  6. Score line or groove

Joseph J. Inda

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Air duct boot

Static structures (e.g. – buildings) – Wall – ceiling – floor – or roof designed for ventilation or...
Patent

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Air duct fitting

Pipe joints or couplings – Frangible element – Score line or groove
Patent

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Air duct riser

Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent

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Double air duct boot

Pipe joints or couplings – Frangible element
Patent

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Pipe coupling

Environmental heating and cooling; fluid handling and sanitary e – Fluid handling or treatment equipment – Fitting
Patent

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Profile ID: LFUS-PAI-P-927848

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