4. Fire escape, ladder, or scaffold
  5. Ladder with pivoted prop
  6. Section extensible below prop pivot

Guenther Krause

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Adjustable ladder

Fire escape – ladder – or scaffold – Ladder – Extension
Patent

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Connecting element

Fire escape – ladder – or scaffold – Convertible – Ladder
Patent

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Connection hook

Fire escape – ladder – or scaffold – Platform
Patent

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Folding ladder

Fire escape – ladder – or scaffold – Convertible – Ladder
Reexamination Certificate

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Jointed ladder

Fire escape – ladder – or scaffold – Ladder with pivoted prop – Section extensible below prop pivot
Patent

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Profile ID: LFUS-PAI-P-94279

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