372 A.2d 263 AMERICAN MUTUAL INSURANCE COMPANY AND HERBERT ENGINEERING, INC. v. ROBERT M. DUVALL, COMMISSIONER OF LABOR, LIBERTY MUTUAL INSURANCE COMPANY, COMPOSITE CONSTRUCTION COMPANY, INC. AND WILLIAM LAMBERT No. 7503Supreme Court of New Hampshire Hillsborough Decided March 31, 1977 1. Workmen’s Compensation — Out-of-State Coverage A workmen’s compensation insurance carrier which issues a policy […]