457 A.2d 1320 Asbestos Insulating Co. and Pennsylvania Manufacturers Association Insurance Co., Petitioners v. Workmen’s Compensation Appeal Board (Joseph F. McGovern, Deceased, by Clare A. McGovern, Widow), Respondents. Commonwealth Court of Pennsylvania.Argued December 16, 1982 March 24, 1983. Workmen’s compensation — Exposure to hazard — Occupational disease — The Pennsylvania Workmen’s Compensation Act, Act of […]