Products liability doctrine holds a manufacturer, or other party involved in selling a product, strictly liable when an article, placed into the market with knowledge that it is to be used without inspection for defects, proves to have a defect that causes a personal injury. Consumers who are injured because of a fault with a product that the consumers had no ability to protect themselves against may recover against the manufacturer under a theory of products liability.
Williamstown is a borough in Dauphin County, Pennsylvania, 38 miles (63 km) northeast of Harrisburg. Formerly, Anthracite coal mines were here, as well as hosiery mills. In 1900, 2,904 people lived here, and 2,934 lived here in 1910. The population was 1,433 at the 2000 census. Williamstown is part of the Harrisburg–Carlisle Metropolitan Statistical Area.