世界知识产权组织(WIPO)：2021 世界知识产权报告（英文版）（229页）
WorldIntellectualPropertyIndicators2021WorldIntellectualPropertyIndicators20212ThisworkislicensedunderCreativeCommonsAttribution4.0International.Theuserisallowedtoreproduce,distribute,adapt,translateandpubliclyperformthispublication,includingforcommer-cialpurposes,withoutexplicitpermission,providedt...
2023-11-29
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