4. Fire escape, ladder, or scaffold
  5. Having transpositioning base and erecting means

Paul Frey-Wigger

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Attachment for the booms of cranes or the like

Fire escape – ladder – or scaffold – Means maintaining platform level on angularly movable support – Swingable support
Patent

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Device for enhancing the versatility of cranes or the like

Fire escape – ladder – or scaffold – Means maintaining platform level on angularly movable support – Swingable support
Patent

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Working platform

Material or article handling – Elevator or hoist and loading or unloading means therefor – Convertible attachment
Patent

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Working platform

Fire escape – ladder – or scaffold – Having transpositioning base and erecting means
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

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Profile ID: LFUS-PAI-P-1487707

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