Stair lifts are mechanical devices, engineered particularly forthose individuals who struggle to climb the stairs due to illness,injury, paralysis, etc. The stair lift was invented in the 1920s bya Pennsylvanian man named C.C. Crispin. Crispin was concerned for afriend of his who was ill and unable to ascend or descend stairsdue to the illness. He set to work on the stair lift in an effortto help his friend move about from place to place.Since that time, stair lifts have evolved with the rest ofmodern technology and are invaluable to those unable to climbstairs or bound to wheelchairs. Mr. Crispin’s spectacular inventionhas given these individuals the ability to use a toggle or switchto control the movements of the stair lift up and down the stairswhile securely fastened to a chair or plat