[問題] 大陸專利狀態查詢
請教各位先進:
要如何查詢大陸專利的法律狀態,
http://search.sipo.gov.cn/sipo/zljs/searchflzt.jsp
我利用上述網址查詢,按確定後,最後都會顯示空白,
不知道為什麼?不知道還有沒有其他的網站可以查詢?
謝謝。
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