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

Fire escape – ladder – or scaffold – Ladder – Flexible

Device for automatically stopping the fall of personnel working

Fire escape – ladder – or scaffold – Door and ladder

Device for barring access to the top of a vertical tubular duct

Fire escape – ladder – or scaffold – With handrail or guard for ladder

Device for blocking stairs

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

Device for climbing on extended support elements, such as...

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

Device for climbing on extended supporting elements, such as...

Fire escape – ladder – or scaffold – Convertible – Ladder

Device for converting an extension ladder into a stepladder

Fire escape – ladder – or scaffold – Self-sustaining – Connector for horizontal or diagonal brace

Device for coupling scaffolding elements

Fire escape – ladder – or scaffold – Door and ladder

Device for deterring unauthorized climbing of permanent ladders

Fire escape – ladder – or scaffold – Plural platforms – common support – Mounted for relative motion

Device for dismantling vehicles, in particular for draining...

Fire escape – ladder – or scaffold – Traversing – track-mounted – With occupant elevating or lowering means

Device for displacing a gondola

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

Device for enabling access to a structure above ground level

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

Device for enhancing the versatility of cranes or the like

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

Device for fighting fires in highrise buildings and towers

Fire escape – ladder – or scaffold – Traversing – track-mounted – With occupant elevating or lowering means

Device for horizontally moving an apparatus working at a high lo

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

Device for human protection in scaffolding

Fire escape – ladder – or scaffold – Convertible

Device for hunting large and small game

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

Device for leveling a ladder

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

Device for lowering a load along a line

Fire escape – ladder – or scaffold – Single stile – strand or pole – Flexible

Device for lowering a load along a metal band