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

Fire escape – ladder – or scaffold – Torso harness – With pole encircling or grasping means

Wood pole fall protection device

Fire escape – ladder – or scaffold – Scaffold external of shaft

Woodsmen portable seat

Fire escape – ladder – or scaffold – Traversing – track-mounted – With vertically spaced second track

Work apparatus for a work on a wall surface

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

Work car

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

Work chair for aerial lift

Fire escape – ladder – or scaffold – Traversing – track-mounted

Work dock

Fire escape – ladder – or scaffold – Combined

Work holder

Fire escape – ladder – or scaffold – With insulation

Work holding stackable step stool

Fire escape – ladder – or scaffold – Self-sustaining – Scaffold horse

Work piece support hinge assembly

Fire escape – ladder – or scaffold – Platform

Work platform

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

Work platform

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

Work platform

Fire escape – ladder – or scaffold – Pitched roof conforming scaffold

Work platform apparatus for roofs

Fire escape – ladder – or scaffold – Automatic control

Work platform centering apparatus

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

Work platform for blowout preventer stacks

Fire escape – ladder – or scaffold – Automatic control

Work platform for buildings

Fire escape – ladder – or scaffold – Pitched roof conforming scaffold

Work platform for roof construction work

Fire escape – ladder – or scaffold – Suspended platform

Work platform for use on bridges

Fire escape – ladder – or scaffold – Having transpositioning base and erecting means – Erecting means actuated by lazy tong

Work platform lift machine with scissor lift mechanism employing