4. Ventilation
  5. Means combined with window
  6. Having air passage means within, attaching to, or replacing...

Daniel E. Friesen

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Extruded window frame system

Static structures (e.g. – buildings) – Framing to receive door – doorjamb – or window sash – Retaining feature between frame and reveal
Patent

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Ventilation window unit

Ventilation – Means combined with window – Having air passage means within – attaching to – or replacing...
Patent

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Profile ID: LFUS-PAI-P-1710931

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