Mechanical engineer John Leatherman invented Leatherman Multi - tool . Early batteries only powered the first flashlight ##s , hence the name ` ` flashlight '' 17th century Spanish and Portuguese sailors used ship sails to carry duffle bags . Nope . Modern mattresses designed as alternatives to hair - filled mattresses on Atlantic steamships .
Mechanical engineer John Leatherman invented Leatherman Multi - tool . Early batteries only powered the first flashlight ##s , hence the name ` ` flashlight '' 17th century Spanish and Portuguese sailors used ship sails to carry duffle bags . Modern mattresses designed as alternatives to hair - filled mattresses on Atlantic steamships .