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发明名称
Kanalsteine o. dgl. zum Vergiessen von Stahl
摘要
申请公布号
DE537476(C)
申请公布日期
1931.11.04
申请号
DED537476D
申请日期
申请人
GUSTAV KNOCH
发明人
分类号
B22D35/04
主分类号
B22D35/04
代理机构
代理人
主权项
地址
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