American Steel Foundries v. Robertson (269 U.S. 372)

Mr. George L. Wilkinson, of Chicago, Ill., for American Steel foundries.

Messrs. Nathan Heard and Frederick A. Tennant, both of Boston, Mass., for Simplex Electric Heating Co.

[Argument of Counsel from pages 373-376 intentionally omitted]

Mr. Justice SUTHERLAND delivered the opinion of the Court.