4. Static structures (e.g., buildings)
  5. Openwork; e.g., truss, trellis, grille, screen, frame, or...
  6. Fabric or lattice; e.g., indeterminate grating

Robert David Black

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Access unit with variable size opening for construction...

Static structures (e.g. – buildings) – With adjunctive means for assembly or disassembly – Removable prop or brace combined with structure component
Reexamination Certificate

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Safety unit

Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Fabric or lattice; e.g. – indeterminate grating
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2777964

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