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Home › Underroof collar for use in water-proofing the joint between a roof structure and a window frame, a packed underroof collar, and a method of providing an underroof collar

Underroof collar for use in water-proofing the joint between a roof structure and a window frame, a packed underroof collar, and a method of providing an underroof collar

US Patent 10934717 · Granted Mar 2, 2021

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