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经营范围
发明名称
Verfahren und Vorrichtung zum Kruemeln von Zinkblende
摘要
申请公布号
DE563424(C)
申请公布日期
1932.11.04
申请号
DE1929S093750D
申请日期
1929.09.05
申请人
SOCIETE ANONYME LA NOUVELLE MONTAGNE
发明人
分类号
C22B1/20
主分类号
C22B1/20
代理机构
代理人
主权项
地址
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