Paul F. Sargent, Appellee, v. Roger T. Johnson, Architect, and Axel H. Ohman, Inc., Aminnesota Corporation, Appellees, v. Preston Haglin Co., a Minnesota Corporation, Appellant.paul F. Sargent, Appellee, v. Roger T. Johnson, Architect, and Axel H. Ohman, Inc., Aminnesota Corporation, Appellees, v. Liberty Mutual Insurance Company, a Fourth-party Defendantabove Named on Behalf of and in the Name of Preston Haglinco., a Minnesota Corporation, Insured of Liberty Mutualinsurance Company at the Trial Herein and Third-partydefendant, Appellant.paul F. Sargent, Appellee, v. Roger T. Johnson, Architect, and Axel H. Ohman, Inc., Aminnesota Corporation, Appellees, v. Liberty Mutual Insurance Company, Appellant