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经营范围
发明名称
TIGHTENING DEVICE
摘要
申请公布号
SU1291300(A1)
申请公布日期
1987.02.23
申请号
SU19853937701
申请日期
1985.06.17
申请人
KOVALEV NIKOLAJ,SU
发明人
KOVALEV NIKOLAJ I,SU
分类号
B23B31/24
主分类号
B23B31/24
代理机构
代理人
主权项
地址
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