![](http://www.wipo.int/export/sites/www/ipstats/images/wipo_pub_931/a_1_3.gif)
http://www.wipo.int/ipstats/en/statistics/patents/wipo_pub_931.html#a13
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這個UN的data有多準確不敢說,與平常的定義也有差
-beingandtime-
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(741 bytes)
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02/28/2010 postreply
22:11:53