618 A.2d 1175 Thomas DIEHL, Petitioner, v. WORKMEN’S COMPENSATION APPEAL BOARD (TASCO INSULATION, INC., Nitro Industrial Covering, Inc., Babich Plumbing, Johns-Manville, Inc., Gailey, Inc., Town and Country Refrigeration, Simakas Brothers Company, Pittsburgh School District, Allegheny Insulation Company, Inc., State Workmen’s Insurance Fund, Pacific Employes, Inc.), Respondents. Commonwealth Court of Pennsylvania.Argued October 19, 1992. Decided December […]