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                具有實用性的發明或者實用新型專利申請應當符合自然規律。違背自然規律的發明或者實用新型專利申請是不能實施的,因此,不具備實用性。 審查員應當特別注意,那些違背能量守恒定律的發明或者實用新型專利申請的主題,例如永動機,必然是不具備實用性的。
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