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发明名称
Соединение промывных штанг
摘要
申请公布号
SU99113(A1)
申请公布日期
1953.11.30
申请号
SU19530448504
申请日期
1953.02.03
申请人
SMERTIN P.A.
发明人
SMERTIN P.A.
分类号
E21B17/02
主分类号
E21B17/02
代理机构
代理人
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地址
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