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

Fire escape – ladder – or scaffold – Safety device for ground-supported ladder

Anti-slide out devices for straight and extension ladders

Fire escape – ladder – or scaffold – Safety device for ground-supported ladder

Anti-slide out devices for straight and extension ladders

Fire escape – ladder – or scaffold – Combined

Anti-slip device for ladder rungs

Fire escape – ladder – or scaffold – Safety device for ground-supported ladder

Anti-slip ladder pad

Fire escape – ladder – or scaffold – Pole or strand grasping-type climber – Alternate grasping

Anti-spin handle for pump jack

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

Appalachian tree truss

Fire escape – ladder – or scaffold – Convertible

Apparatus adapted for multipurpose use such as a tree stand, bac

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

Apparatus and method for a sawing stand

Fire escape – ladder – or scaffold – Combined

Apparatus and method for hoisting a platform adjacent a scaffold

Fire escape – ladder – or scaffold – Ladder with land vehicle

Apparatus and method for holding/locking a ladder or other...

Fire escape – ladder – or scaffold – Torso harness – Window washer type

Apparatus and method for producing a counteracting force

Fire escape – ladder – or scaffold – With insulation

Apparatus and method for removing liners from their outer contai

Fire escape – ladder – or scaffold – Putlog or spacer

Apparatus and method for stabilizing a scaffold assembly

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

Apparatus and method of forming a corrosion resistant...

Fire escape – ladder – or scaffold – Convertible – Ladder

Apparatus convertible between creeper and stepladder...

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

Apparatus for a reclining and rectractable sling seat for...

Fire escape – ladder – or scaffold – Horizontal traversing - actuation – control – or response – With handle or steering means

Apparatus for aiding in loading a mobile work platform onto an e

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

Apparatus for aligning a mobile lift work platform

Fire escape – ladder – or scaffold – Pole or strand grasping-type climber – Foot- or leg-attachable

Apparatus for and method of climbing an upright columnar member