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

Fire escape – ladder – or scaffold – Self-sustaining – Having height adjustable platform

Expandable jack

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

Expandable sawhorse-type support for work pieces including...

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

Expandable scaffold for hopper

Fire escape – ladder – or scaffold – Scaffold horse beam or leg – Relatively movable

Expandable workhorse

Fire escape – ladder – or scaffold – Safety device – platform associated – Railing

Expansible corridor

Fire escape – ladder – or scaffold – Convertible – Ladder

Explosive release window grille

Fire escape – ladder – or scaffold – Ladder – Supporting surface compensating means

Extendable A-frame ladder for uneven surfaces

Fire escape – ladder – or scaffold – Ladder – Supporting surface compensating means

Extendable leg means for levelling ladders and the like

Fire escape – ladder – or scaffold – Ladder with pivoted prop – Lateral prop

Extendable pole locking mechanism for ladder stabilizer

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

Extendable pyramid ladder system

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

Extendable sawhorse top rail

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

Extendable scaffold bracket

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

Extendable step ladder

Fire escape – ladder – or scaffold – Platform – Relatively movable sections

Extendable support

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

Extendable, elevatable, rotatable, collapsible boom and basket f

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

Extendeable sawhorse top rail

Fire escape – ladder – or scaffold – With storage device for supple escape

Extendible ladder

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

Extendible safety posts for manhole ladders

Fire escape – ladder – or scaffold – Ladder – Flexible

Extendible self-retracting ladder