LONDON AND PARIS UNWILLING TO BEND ON PIPELINE ISSUE
France and Britain made clear today that they are unwilling to offer the United States any major concessions to halt American trade sanctions against Western European companies involved in the construction of the Soviet natural gas pipeline. The countries' positions were stated by President Francois Mitterrand and Prime Minister Margaret Thatcher at a joint news conference here at the end of two days of regularly scheduled talks. The relative firmness of their remarks was surprising because reports from Washington have indicated that the United States and its main European allies were making progress on a unified trade policy toward the Soviet Union that could lead to a lifting of the sanctions. Mrs. Thatcher offered an additional expression of distress concerning American policy. After praising a French decision to abstain in a United Nations vote on an Argentine motion calling for immediate talks on the future of the Falkland Islands, Mrs. Thatcher said the United States vote in favor of the resolution was ''incomprehensible and disappointing.''