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发明名称
Verfahren zur Herstellung von Modellplatten fuer Kunstgussformen in Sand fuer Massenguss
摘要
申请公布号
DE518124(C)
申请公布日期
1931.02.11
申请号
DE1929N030450D
申请日期
1929.06.04
申请人
MAX NAUMANN
发明人
分类号
主分类号
代理机构
代理人
主权项
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