49 A.2d 224 MAINE BROADCASTING COMPANY, INC. vs. EASTERN TRUST BANKING COMPANY and THOMPSON L. GUERNSEY. Supreme Judicial Court of Maine. Penobscot. Opinion, October 19, 1946. Declaratory Judgments In proceedings for declaratory judgment, it is essential that a controversy exists. A proceeding for a declaratory judgment may be maintained even although another remedy is available. […]