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经营范围
发明名称
écrou de sécurité
摘要
申请公布号
FR970952(A)
申请公布日期
1951.01.11
申请号
FRD970952
申请日期
1948.08.31
申请人
发明人
STOCK RENE
分类号
F16B39/34
主分类号
F16B39/34
代理机构
代理人
主权项
地址
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