Resources Contact Us Home
Adjustable step ladder

Image Number 2 for United States Patent #6698550.

An adjustable back leg assembly provides a step ladder of simple construction for convenient use on stairs and other sloping surfaces.

  Recently Added Patents
Uni-directional transient voltage suppressor (TVS)
Vehicle and method for controlling vehicle
Motorized home appliance door
Combination therapy to enhance NK cell mediated cytotoxicity
Distributed image acquisition, storage, and backup system
PVD coated tool
Chemically resistant membranes, coatings and films and methods for their preparation
  Randomly Featured Patents
Method of compensating offtrack in disk unit
Method and surgically implantable apparatus for providing fluid communication with the interior of the body
Silencing vane for toroidal blower
Method of manufacturing insulated gate semiconductor device to improve ruggedness
Propionic acid, ammonia, propanediol and water solutions and the use thereof
Lock protector assembly
Piezoactuator and drive circuit therefor
High temperature furnace door seal
Photoalignment material, display substrate having an alignment layer formed using the same, and to a method of manufacturing the display substrate
Synchronization of wireless communication between devices