Coal-cars. In equity, nos. 3275, 3273, 3271, and 3317, in district court for eastern district of Pennsylvania, Rainey-Wood Coke Company et al. v. United States and Interstate Commerce Commission; Bethlehem Steel Company et al. v. [same]; Berwind-White Coal Mining Company et al. v. [same]; Public Service Electric and Gas Company v. [same]; memorandum brief for Interstate Commerce Commission.