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经营范围
发明名称
Axially compressible shaft seal
摘要
申请公布号
US2851290(A)
申请公布日期
1958.09.09
申请号
US19540443356
申请日期
1954.07.14
申请人
EDWARD HANSON
发明人
HANSON EDWARD
分类号
F16J15/18
主分类号
F16J15/18
代理机构
代理人
主权项
地址
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