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发明名称
Hydraulic packing and seal
摘要
申请公布号
US2494598(A)
申请公布日期
1950.01.17
申请号
US19470755010
申请日期
1947.06.16
申请人
WARING ALFRED C
发明人
WARING ALFRED C.
分类号
F16J15/32
主分类号
F16J15/32
代理机构
代理人
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