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发明名称
Stuffing box
摘要
申请公布号
US1879478(A)
申请公布日期
1932.09.27
申请号
US19300426085
申请日期
1930.02.05
申请人
LEROY PRUIETT CHARLES
发明人
PRUIETT CHARLES LEROY
分类号
E21B33/08;F16J15/18
主分类号
E21B33/08
代理机构
代理人
主权项
地址
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