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发明名称
Flexible stuffing box assembly
摘要
申请公布号
US2041316(A)
申请公布日期
1936.05.19
申请号
US19340746871
申请日期
1934.10.04
申请人
CONTINENTAL OIL COMPANY
发明人
BENNETT EDWIN O.
分类号
E21B33/08;F16J15/18
主分类号
E21B33/08
代理机构
代理人
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地址
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