James W. Ballard

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Methods of constructing a one-piece roof vent device

Metal deforming – By use of tool acting during relative rotation between tool... – With metal deformation of different type
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One-piece roof vent device and methods of constructing and utili

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One-piece roof vent device and methods of constructing and utili

Patent

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Pressure equalizing roof vent

Static structures (e.g. – buildings) – Enclosure or cover – with supplemental fluid-guiding port... – Attic vent
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Roof vent

Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
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Profile ID: LFUS-PAI-P-77530

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