中国镍白铜技术发明演变为“德国银”专利的历史考证
Publisher: 国家哲学社会科学学术期刊数据库
E-ISSN: 1003-0476|volume|3|80-83
ISSN: 1003-0476
Source: 知识产权, Vol.volume, Iss.3, 2015-01, pp. : 80-83
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Abstract