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國際專利分類 (IPC, International Patent Classification)
鏈接地址: http://www.wipo.org/classifications/en/ipc/
內(nèi)容簡介:

The International Patent Classification (IPC), established by the Strasbourg Agreement 1971, provides for a hierarchical system of language independent symbols for the classification of patents and utility models according to the different areas of technology to which they pertain.

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