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发明名称
Сальниковая муфта
摘要
申请公布号
SU35768(A1)
申请公布日期
1934.04.30
申请号
SU19320111491
申请日期
1932.06.23
申请人
VEKSLER M.S.
发明人
VEKSLER M.S.
分类号
E21B31/00
主分类号
E21B31/00
代理机构
代理人
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