Mr. Frederick Bernays Wiener, of Providence, R.I., for appellant.
Mr. John Lord O'Brian, of Washington, D.C., for appellees.
Mr. Albert R. Connelly, of New York City, for appellee, Westinghouse Electric Corporation.
Appeal from the District Court of the United States for the Eastern District of Wisconsin.
Mr. Justice REED delivered the opinion of the Court.
The United States sought an injunction under 1 and 4 of the Sherman Act1 in the District Court against continuance of violations of that Act by an allegedly unlawful combination or conspiracy between appellees, through contracts, to restrain interstate trade in certain patented electrical devices. The restraint alleged arose from a cross- license arrangement between the patent owners, Line Material Company and Southern States Equipment Corporation, to fix the sale price of the devices [333 U.S. 287 , 289] to which arrangement the other appellees, licensees to make and vend, adhered by supplemental contracts.