共 50 条
- [1] Retinal arterial occlusion and patent foramen ovale: A case study-based review JOURNAL FRANCAIS D OPHTALMOLOGIE, 2024, 47 (01):
- [3] A Comparative Study of Patent Laws in The Americas and The International Effects Thereof JOURNAL OF THE PATENT OFFICE SOCIETY, 1949, 31 (10): : 726 - 742
- [4] Study on the two-stage patent funding policy based on the quality of patent application Shanghai Jiaotong Daxue Xuebao, 2009, 9 (1417-1421):
- [7] Cluster-based patent retrieval using international patent classification system COMPUTER PROCESSING OF ORIENTAL LANGUAGES, PROCEEDINGS: BEYOND THE ORIENT: THE RESEARCH CHALLENGES AHEAD, 2006, 4285 : 205 - +
- [10] A comparative study between patent resources on the Internet and online patent databases. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1998, 215 : U388 - U388