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Foldable frame

Fire escape – ladder – or scaffold – Ladder with pivoted prop
Patent

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Foldable ladder structure and method of manufacturing the same

Fire escape – ladder – or scaffold – Ladder with pivoted prop
Patent

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Foldable step ladder with leg aligner and handle

Fire escape – ladder – or scaffold – Ladder with pivoted prop
Reexamination Certificate

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Foldable step ladder with leg aligner and handle

Fire escape – ladder – or scaffold – Ladder with pivoted prop
Reexamination Certificate

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Foldable step ladder with leg aligner and handle

Fire escape – ladder – or scaffold – Ladder with pivoted prop
Reexamination Certificate

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Foldable stepladder with step lock

Fire escape – ladder – or scaffold – Ladder with pivoted prop – Pivoted to top-step cleat
Reexamination Certificate

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Folding ladder

Fire escape – ladder – or scaffold – Ladder with pivoted prop
Reexamination Certificate

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Folding step ladder

Fire escape – ladder – or scaffold – Ladder with pivoted prop – Coplanar extension with prop pivoted to lower section
Patent

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Folding step stool

Fire escape – ladder – or scaffold – Ladder with pivoted prop
Reexamination Certificate

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Folding tripod ladder having extendable legs

Fire escape – ladder – or scaffold – Ladder with pivoted prop – Hinged to top-step rear flange
Reexamination Certificate

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Foot actuated ladder brace

Fire escape – ladder – or scaffold – Ladder with pivoted prop – Lateral prop
Patent

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Freestanding extension ladder

Fire escape – ladder – or scaffold – Ladder with pivoted prop – Lateral prop
Patent

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Full-length step ladder with large, fold-away steps

Fire escape – ladder – or scaffold – Ladder with pivoted prop
Patent

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