1879
Simply so, who was Charles Annan?
Charles Annan, who was in the machine shop where Knight’s iron model was being built, stole her design and patented the device first. When Knight attempted to patent work, she discovered Knight’s patent and filed a patent interference lawsuit in the fall of 1870.
In this manner, why was the paper bag machine invented? Margaret Knight invented a machine that could automatically cut, fold, and glue flat-bottomed paper bags. … After witnessing a serious accident caused by a malfunctioning loom, Knight was inspired to create her first invention, a safety device that became a standard fixture on looms.