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发明专利权自公告之日起生效。
The patent right for invention shall take effect as of the date of the announcement.
youdao
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根据这个法律。发明专利权的期限是多久？
How long is the duration of patent right for an invention according to the law?
youdao
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根据这个法律。发明专利权的期限是多久？
How long is the duration of patent right for an invention according to the law?
youdao