294 A.2d 211 SEARS, ROEBUCK COMPANY v. A.C. PHILIP, JR. No. 6203.Supreme Court of New Hampshire Belknap. Decided July 31, 1972. 1. Superior Court Rule 21, authorizing third-party practice, does not create substantive rights in litigants or establish a right of reimbursement, indemnity, or contribution; but the rule expedites the presentation, and in some cases […]