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The agreement is formed in England but several of its members reside in the United States and the business of the plaintiff in the United States is affected by the agreement. Copyright laws do not grant to copyright owners the privilege of combining in violation of otherwise valid state of federal laws.
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Obviously this is an agreement in restraint of trade. It has also agreed with the other members of the Guild to maintain minimum prices for each class of customer. This it is claimed to have done here, for it has contracted with the other members of the Guild to limit production of each engraving to a specified number and to destroy the plates after either the number specified or a specified period of time from the first production has been reached.The plaintiff, a British print producer and dealer, member of the Fine Arts Trade Guild, copyrighted in the United States eight mezzotint engravings of old masters produced at its order by three mezzotint engravers.