4. Fire escape, ladder, or scaffold
  5. Ladder
  6. With hook or grab

Brian Staal

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Portable self-adjusting ladder

Fire escape – ladder – or scaffold – Ladder – With hook or grab
Patent

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Portable utility ladder

Building units and construction elements – Stair – ladder – scaffold – or similar support – Stepped
Patent

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Profile ID: LFUS-PAI-P-1810969

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