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经营范围
发明名称
Perfectionnement aux machines à rétreindre
摘要
申请公布号
FR52390(E)
申请公布日期
1944.03.14
申请号
FRD52390
申请日期
1942.02.27
申请人
CHANAY & MAITROT
发明人
分类号
B21J7/16
主分类号
B21J7/16
代理机构
代理人
主权项
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