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经营范围
发明名称
Dispositif de sécurité pour boulons ou axes
摘要
申请公布号
FR873965(A)
申请公布日期
1942.07.24
申请号
FRD873965
申请日期
1941.07.09
申请人
发明人
GRAF OTTO
分类号
F16B21/18
主分类号
F16B21/18
代理机构
代理人
主权项
地址
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