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发明名称
Procédé et dispositif pour l'amélioration de corps creux ou pleins de grande largeur
摘要
申请公布号
FR872908(A)
申请公布日期
1942.06.23
申请号
FRD872908
申请日期
1941.06.06
申请人
DORTMUND-HOERDER HU:TTENVEREIN AKTIENGESELLSCHAFT
发明人
分类号
C21D9/00
主分类号
C21D9/00
代理机构
代理人
主权项
地址
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