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发明名称
Лабиринтный беспружинный сальник для поршневых или золотниковых штоков паровых машин
摘要
申请公布号
SU14308(A1)
申请公布日期
1930.03.31
申请号
SU19290042726
申请日期
1929.03.15
申请人
BOBROV A.V.
发明人
BOBROV A.V.
分类号
F16J15/44
主分类号
F16J15/44
代理机构
代理人
主权项
地址
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