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发明名称
APPARATUS FOR DECREASING FRICTION IN PIPELINES AND HOSES
摘要
申请公布号
SU868143(A2)
申请公布日期
1981.09.30
申请号
SU19802899904
申请日期
1980.03.28
申请人
DORMASHOVA NATALYA L,SU;IONOV ALEKSANDR L,SU
发明人
DORMASHOVA NATALYA L,SU;IONOV ALEKSANDR L,SU
分类号
F15D1/02;(IPC1-7):F15D1/02
主分类号
F15D1/02
代理机构
代理人
主权项
地址
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