LandOfFree - US Patents - Listing for Fire escape, ladder, or scaffold

Fire escape – ladder – or scaffold – Scaffold supported internally on shaft

Adjustable working platform construction

Fire escape – ladder – or scaffold – Miscellaneous

Adjustable workman's bed system

Fire escape – ladder – or scaffold – Unitary foldable – rigid scaffold or ladder – Trestle

Adjustable, collapsible sawhorse

Fire escape – ladder – or scaffold – Ladder and platform – Platform with ladder as support

Adjustable, portable combination tree stand

Fire escape – ladder – or scaffold – Convertible – Ladder

Adjustable-height ladder

Fire escape – ladder – or scaffold – Having transpositioning base and erecting means – Ladder pivotably mounted on transpositioning base

Adjustable-width scaffold

Fire escape – ladder – or scaffold – Miscellaneous

Adjusting screw retainer

Fire escape – ladder – or scaffold – Horizontal traversing - actuation – control – or response – Holding means

Aerial apparatus and stabilizing means therefor

Fire escape – ladder – or scaffold – Platform with elevating or lowering means – Suspended

Aerial basket structure for linemen and method for utilizing sam

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

Aerial device

Fire escape – ladder – or scaffold – Having transpositioning base and erecting means – Ladder pivotably mounted on transpositioning base

Aerial extension ladder

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

Aerial ladder cradle assembly

Fire escape – ladder – or scaffold – Horizontal traversing - actuation – control – or response – Holding means

Aerial ladder rotation limiter

Fire escape – ladder – or scaffold – Endless conveyer escape

Aerial ladder system with powered rungs

Fire escape – ladder – or scaffold – Ladder – With reinforcing means

Aerial ladder tower with pretensioned truss members

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

Aerial life saver combine

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

Aerial lift bucket rotation device including bucket leveling mea

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

Aerial lift including a detachable end-hung basket

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

Aerial lift including fiber optics boom control