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发明名称
Noyau pour la coulée continue de tubes ou de barres creuses métalliques
摘要
申请公布号
FR897493(A)
申请公布日期
1945.03.22
申请号
FRD897493
申请日期
1943.08.25
申请人
WIELAND-WERKE AKTIENGESELLSCHAFT
发明人
分类号
B22D11/00
主分类号
B22D11/00
代理机构
代理人
主权项
地址
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