
Opening the toy chest: Six workers produced thousands of Tonka trucks
Breadcrumb Trail Links Opinion Column A portion of U.S. Patent #3,462,879 for Toy Dump Truck, filed by the Tonka Corporation, invented by Curtis H. Fahrendorff, Mound, Minnesota. The patent was granted on Aug. 26, 1969. (Expired August 26, 1986.) Google …