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

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

Boat step with improved support and retraction mechanism

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

Boat trailer bow entry ladder assembly

Fire escape – ladder – or scaffold – Torso harness

Body harness

Fire escape – ladder – or scaffold – Miscellaneous

Body support

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

Boom arrangement for rock drilling apparatus

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

Boom elevating device for line lifts

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

Boom lift vehicle and method of controlling lifting functions

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

Bosun chair support apparatus

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

Bow holder for a tree stand

Fire escape – ladder – or scaffold – Ladder with pivoted prop – Pivoted to top-step cleat

Brace fastener for a folding ladder

Fire escape – ladder – or scaffold – Self-sustaining

Brace for horizontal scaffold members

Fire escape – ladder – or scaffold – Platform

Brace for scaffolding plank

Fire escape – ladder – or scaffold – Putlog or spacer

Brace for securing a pole to support surface

Fire escape – ladder – or scaffold – Self-sustaining

Brace lock for scaffolding

Fire escape – ladder – or scaffold – Self-sustaining

Bracing clamp for shoring structures

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

Bracket

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

Bracket

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

Bracket assembly for saw horses

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

Bracket for a sawhorse and other multiple piece stands