REWE Zentralfinanz GmbH, Köln, v. Director of the Landwjrtschaftskammer, Bonn. Case No. 4/75. Preliminary Ruling of May 27, 1975, on request of the First Chamber of the Verwaltun - Common Market Law Review View REWE Zentralfinanz GmbH, Köln, v. Director of the Landwjrtschaftskammer, Bonn. Case No. 4/75. Preliminary Ruling of May 27, 1975, on request of the First Chamber of the Verwaltun by - Common Market Law Review REWE Zentralfinanz GmbH, Köln, v. Director of the Landwjrtschaftskammer, Bonn. Case No. 4/75. Preliminary Ruling of May 27, 1975, on request of the First Chamber of the Verwaltun 13 1 Common Market Law Review