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经营范围
发明名称
SINGLE WEIGHT FOR BALLASTING PIPELINE BEING LAID UNDER WATER
摘要
申请公布号
SU676800(A1)
申请公布日期
1979.07.30
申请号
SU19782640598
申请日期
1978.06.15
申请人
VNI PK I PO TRUBOPROVODNYM KONTEJNERNYM SISTEMAM
发明人
PENKOVSKIJ EFIM M,SU
分类号
(IPC1-7):F16L1/04
主分类号
(IPC1-7):F16L1/04
代理机构
代理人
主权项
地址
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