Defects guarantee liability means that according to the law, when one party transfers property (or rights) to the other party in a transaction, it should guarantee that the property (or rights) is not flawless
Company A and Company B signed an agreement, and A paid 500,000 yuan to obtain 6 patented products under Company B. Later, Company A discovered that the copyright of one of the products belonged to Company C during the use process
 If the transferred property (or rights) is flaw, it should be Take corresponding responsibilities to the opposing party