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发明名称
OPENING ANCHOR OF PIPELINE
摘要
申请公布号
SU752102(A1)
申请公布日期
1980.07.30
申请号
SU19782583225
申请日期
1978.02.20
申请人
DERNOV SERGEJ N,SU
发明人
DERNOV SERGEJ N,SU
分类号
F16L1/00;(IPC1-7):F16L1/02
主分类号
F16L1/00
代理机构
代理人
主权项
地址
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