James R. Snyder Co., Inc. v. Edward Rose and Sons, Inc.

ENGEL, Circuit Judge.

Plaintiffs brought this suit under Sections 4 and 16 of the Clayton Act, 15 U.S.C. §§ 15 and 26, seeking treble damages and injunctive relief for violation of § 1 of the Sherman Act. 15 U.S.C. § 1. The gist of plaintiffs’ complaint is that the defendantappellees, with other defendant employer associations, conspired with construction trade unions (not named as defendants) to impose the terms of a multi-trade labor agreement upon the plaintiffs for the purpose of forcing them out of business.

Plaintiffs are mason contractors and members of the Detroit Mason Contractors…