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发明名称
Matricage des pièces profilées avec évidements intérieurs, par un nouveau procédé de fabrication
摘要
申请公布号
FR769720(A)
申请公布日期
1934.08.31
申请号
FRD769720
申请日期
1934.03.06
申请人
发明人
JEAN-MARIE LAFAURIE
分类号
B21D26/02
主分类号
B21D26/02
代理机构
代理人
主权项
地址
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