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经营范围
发明名称
Packing ring
摘要
申请公布号
US2417840(A)
申请公布日期
1947.03.25
申请号
US19440528097
申请日期
1944.03.25
申请人
RODGERS LESTER W;SIMPSON STANLEY H
发明人
RODGERS LESTER W.;SIMPSON STANLEY H.
分类号
F16J15/20
主分类号
F16J15/20
代理机构
代理人
主权项
地址
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