4. Static structures (e.g., buildings)
  5. Wall, ceiling, floor, or roof designed for ventilation or...
  6. With the vent or drain entirely along at least one...

Eugene R. Machi

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Apparatus and system for utility waste and venting

Fluid handling – With casing – support – protector or static constructional... – Static constructional installations
Reexamination Certificate

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Method and apparatus for utility waste and venting systems

Static structures (e.g. – buildings) – Wall – ceiling – floor – or roof designed for ventilation or... – With the vent or drain entirely along at least one...
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2924919

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