Patent Analysis and Research on Secure Communication——Based on Data Retrieved from Derwent Innovation Index

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Library and Information Service ›› 2009, Vol. 53 ›› Issue (08) : 67-71.

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{{article.zuoZheEn_L}}. {{article.title_en}}[J]. {{journal.qiKanMingCheng_EN}}, 2009, 53(08): 67-71

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