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发明名称
Procédé de fabrication de soupapes creuses et soupapes obtenues par ce procédé
摘要
申请公布号
FR1016934(A)
申请公布日期
1952.11.26
申请号
FRD1016934
申请日期
1950.01.28
申请人
发明人
JEUDI GABRIEL
分类号
B23P13/00
主分类号
B23P13/00
代理机构
代理人
主权项
地址
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