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Collapsible and retractable step apparatus

Fire escape – ladder – or scaffold – Wall- or floor-attached – Retractable or collapsible beneath floor – track-mounted
Patent

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Collapsible fire escape ladder

Fire escape – ladder – or scaffold – Wall- or floor-attached – Ladder
Patent

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Collapsible ladder assembly suitable for use as fire escape

Fire escape – ladder – or scaffold – Wall- or floor-attached – Ladder
Patent

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Collapsible retriever ladder

Fire escape – ladder – or scaffold – Wall- or floor-attached – Wall-mounted platform – with ladder
Patent

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Collapsible scaffold bracket

Fire escape – ladder – or scaffold – Wall- or floor-attached
Patent

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Collapsible step apparatus for cabinet shelves

Fire escape – ladder – or scaffold – Wall- or floor-attached – Retractable or collapsible beneath floor – track-mounted
Patent

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Combination pool ladder, fence and adjustable multi-level deck

Fire escape – ladder – or scaffold – Wall- or floor-attached – Wall-mounted platform – with ladder
Patent

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Combination step bolt and harness attachment

Fire escape – ladder – or scaffold – Wall- or floor-attached – Independent rung or step
Patent

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Composite inspection plate-step

Fire escape – ladder – or scaffold – Wall- or floor-attached – Independent rung or step
Patent

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Confined space lowering and retrieving apparatus

Fire escape – ladder – or scaffold – Wall- or floor-attached
Patent

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Construction wall bracket

Fire escape – ladder – or scaffold – Wall- or floor-attached
Patent

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Continuous adjusting scaffold

Fire escape – ladder – or scaffold – Wall- or floor-attached
Patent

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Contractible escape ladder

Fire escape – ladder – or scaffold – Wall- or floor-attached – Ladder
Patent

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Corner support assembly for wall scaffolding

Fire escape – ladder – or scaffold – Wall- or floor-attached
Reexamination Certificate

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Debris net/scaffolding frame lifting system

Fire escape – ladder – or scaffold – Wall- or floor-attached
Patent

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Demountable boat ladder

Fire escape – ladder – or scaffold – Wall- or floor-attached – Ladder
Patent

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Deployable rail structure for high-rise building evacuation syst

Fire escape – ladder – or scaffold – Wall- or floor-attached
Patent

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Detachable step

Fire escape – ladder – or scaffold – Wall- or floor-attached – Independent rung or step
Patent

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Device at power line poles

Fire escape – ladder – or scaffold – Wall- or floor-attached – Independent rung or step
Patent

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Device for fighting fires in highrise buildings and towers

Fire escape – ladder – or scaffold – Wall- or floor-attached
Patent

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