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專利授權時間大約需要多久  

自專利申請文件遞交至專利局之日起,發明專利大概需要 2年左右 授權;

實用新型專利大概需要 6-8 個月授權;

外觀設計大概需要 4-6 個月授權。

友情鏈接
亚洲AV无码精品一区二区久久,午夜精品久久久久久久99蜜桃,中文字幕无码乱码人妻系列蜜桃