William N. Spearing and Trudy Spearing v. National Iron Company, Pettibone Corporation, and Pettibone International Sales Corporation

POSNER, Circuit Judge.

This appeal by the plaintiffs in a products liability suit brought in federal court under the diversity jurisdiction raises questions of Canadian law and of Wisconsin tort and conflicts law. Mr. Spearing, a citizen of Canada, was employed by a Canadian company that is not a party to this suit to transport a truck-crane from Duluth, Minnesota to New York. The tractor and carrier of the truck-crane had been made in Canada by the Canadian subsidiary of Pettibone Corporation, a Delaware corporation having its principal place of business in Illinois, and had been sold to…