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

William F. Frame

Inventor

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Caster

Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Tanning
Design Patent

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Caster with weight transferring tab

Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Casters – Wheels
Reexamination Certificate

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Caster with weight transferring tab

Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Casters – Wheels
Reexamination Certificate

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Combined ladder-cart

Material or article handling equipment – Hand cart or frame therefor – Stable
Design Patent

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Foldable stairway ladder

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

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Profile ID: LFUS-PAI-P-2862027

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