Ideal Cement Company. United States v. Ideal Cement Company et al.: [same] v. National Retail Lumber Dealers Association et al.; [same] v. Mountain States Lumber Dealers Association et al.; [same] v. W. C. Bell Services, Inc., et al. (U. S. D. C. Dist. Colo.—nos. 9336-39), statement of grounds for action; indictments charging violations of Sherman antitrust act.