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经营范围
发明名称
Soupape à fermeture automatique
摘要
申请公布号
FR37899(E)
申请公布日期
1931.02.04
申请号
FRD37899
申请日期
1930.01.17
申请人
发明人
LECQ ALBERT
分类号
E02D7/18
主分类号
E02D7/18
代理机构
代理人
主权项
地址
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