4. Static structures (e.g., buildings)
  5. Openwork; e.g., truss, trellis, grille, screen, frame, or...
  6. Three-dimensional space-defining

Richard Hayes, Sr.

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Modular multilevel access platform and method for erecting...

Fire escape – ladder – or scaffold – Stackable
Reexamination Certificate

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Stairtower and method for erecting the same

Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Three-dimensional space-defining
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2345596

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