[問題] 關於專利範圍何時要寫「至少一」
請問一下常見於claim中有寫出『設有至少一個xx』,
雖然其意思是指範圍較大,可包括一個或多個,
但假設我寫的是『設有凹槽』不也一樣包括了一個或多個嗎?
為何就要寫『設有至少一凹槽』呢?請前輩指點。謝謝
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