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经营范围
发明名称
SHAFT HYDRODYMANIC SEAL
摘要
申请公布号
SU815392(A1)
申请公布日期
1981.03.23
申请号
SU19772448277
申请日期
1977.02.02
申请人
TETEREVYATNIKOV LEV N,SU
发明人
TETEREVYATNIKOV LEV N,SU
分类号
F16J15/40;(IPC1-7):F16J15/40
主分类号
F16J15/40
代理机构
代理人
主权项
地址
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