Istituto Chemioterapico Italiano and Commercial Solvent Corporation v. Commission of the European Communities. Joined Cases 6 and 7/73. Decision of March 6, 1974 - Common Market Law Review View Istituto Chemioterapico Italiano and Commercial Solvent Corporation v. Commission of the European Communities. Joined Cases 6 and 7/73. Decision of March 6, 1974 by - Common Market Law Review Istituto Chemioterapico Italiano and Commercial Solvent Corporation v. Commission of the European Communities. Joined Cases 6 and 7/73. Decision of March 6, 1974 11 3 Common Market Law Review