题目内容
Form antonyms of the follwoing words by adding prefixes.
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Lanham Trademark Act of 1946 was enacted in part to protect manufacturers from losing business to rival companies that used confusing similar trademarks.
Trademarks may be registered only with the federal government.
When a trademark has been infringed, the owner of the mark has a cause of action against the infringer.
Generic terms receive no protection even if they acquire secondary meanings.
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