Retailers that co-operated with the Guild had to agree to accept the decision of the Piracy Committee, and to return to sellers any dresses that had been "pirated." Furthermore, they had to warrant to customers that the designs of the dresses they sold had not been "pirated." As a result of the Guild's efforts, approximately 12,000 retailers signed agreements to "cooperate" with the Guild's boycott program.312 U.S. at 461.
