贸易 来源:互联网 时间:2023-05-18 09:07:39
(资料图)
1、全球有57个国家和地区建立了实用新型制度。
2、它们包括中国、德国、日本、韩国、澳大利亚、奥地利、白俄罗斯、巴西等国家。
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