| 标题 |
Utility model patent regimes around the world and over time: Strictness, usage, and economic development |
| 网址 | |
| DOI | |
| 其它 |
期刊:Research Policy 作者:Dan Prud’homme; Zitai Hu; Wenlong He; Curba Morris Lampert 出版日期:2026-05-22 |
| 求助人 | |
| 下载 | 求助已完成,仅限求助人下载。 |
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(2025-6-4)