3D打印巨头3D SYSTEMS公司专利态势分析
刘艳丽1,2,*(
),何微3,吴鸣1
),何微3,吴鸣1
Patent Trend Analysis for 3D SYSTEMS
Yanli Liu1,2,*(),Wei He3,Ming Wu1
),Wei He3,Ming Wu1
图11. 3D SYSTEMS公司立体光刻专利的主题聚类地图
.
