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发明名称
écrou-verrou
摘要
申请公布号
FR982375(A)
申请公布日期
1951.06.11
申请号
FRD982375
申请日期
1949.03.07
申请人
发明人
GRESSET RAYMOND-ALEXANDRE
分类号
F16B39/32
主分类号
F16B39/32
代理机构
代理人
主权项
地址
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