4. Fire escape, ladder, or scaffold
  5. Unitary foldable, rigid scaffold or ladder
  6. Trestle

Carl Ulshafer, Jr.

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Collapsible sawhorse apparatus

Fire escape – ladder – or scaffold – Unitary foldable – rigid scaffold or ladder – Trestle
Patent

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Hitching apparatus

Land vehicles – Wheeled – Articulated vehicle
Patent

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Woodworking portable tool mounting assembly for sawhorse

Supports – Brackets – Specially mounted or attached
Patent

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Profile ID: LFUS-PAI-P-1680001

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