Content tagged "Patents History"

Patent for Play-Doh Issued January 26, 1965

Washington - Noah W. and Joseph S. McVicker, while living in Cincinnati, received patent #3,167,440 for a soft, pliable plastic modeling composition, today better known as Play-Doh...

Woman Invented Dishwasher

Josephine Garis Cochran invented the first useful dishwasher in Shelbyville, Ill., and received patent # 355,139 on December 28, 1886. Cochran, a wealthy woman who entertained...