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经营范围
发明名称
Fluid seal
摘要
申请公布号
US2547257(A)
申请公布日期
1951.04.03
申请号
US19460695664
申请日期
1946.09.09
申请人
COLE PRENTISS I
发明人
COLE PRENTISS I.
分类号
F16J15/32
主分类号
F16J15/32
代理机构
代理人
主权项
地址
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