2009年已有数据库加密技术的专利发明出现。

In 2009, there was a patent invention of database encryption technology.

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我们提供的登记日期您的专利在我们的私人数据库。

We offer the registration of your patent dates in our private Database.

youdao

我们提供的登记日期您的专利在我们的私人数据库。

We offer the registration of your patent dates in our private Database.

youdao