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发明名称
Устройство для предохранения плунжера в глубоких насосах нефтяных скважин
摘要
申请公布号
SU25568(A1)
申请公布日期
1932.03.31
申请号
SU19290048339
申请日期
1929.05.31
申请人
SERGIENKO YA.YA.
发明人
SERGIENKO YA.YA.
分类号
F04B47/00
主分类号
F04B47/00
代理机构
代理人
主权项
地址
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