4. Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
  5. Hinge
  6. Resiliently biased hinge

Joseph C. Dangrow

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Dynamic hinge for ladder

Fire escape – ladder – or scaffold – Unitary foldable – rigid scaffold or ladder – Collapsible ladder
Reexamination Certificate

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Locking hinge for folding ladder

Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Hinge – Resiliently biased hinge
Reexamination Certificate

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Profile ID: LFUS-PAI-P-3071698

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