4. Static structures (e.g., buildings)
  5. Intersection of wall to floor, ceiling, roof, or another wall
  6. Flexible barrier covering: shaped or edge-attached

International Steel Company

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Operating and speed control mechanism for revolving doors

Movable or removable closures – Plural wings radiate from common pivot; i.e. – revolving – With speed regulator
Patent

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Radiant energy shielded enclosures

Static structures (e.g. – buildings) – Intersection of wall to floor – ceiling – roof – or another wall – Flexible barrier covering: shaped or edge-attached
Patent

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Profile ID: LFUS-PAI-P-1142262

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