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经营范围
发明名称
Piston seal
摘要
申请公布号
US2591230(A)
申请公布日期
1952.04.01
申请号
US19490069587
申请日期
1949.01.06
申请人
HYDROPRESS, INCORPORATED
发明人
BERTRAND JOSEPH V.
分类号
F16J9/08
主分类号
F16J9/08
代理机构
代理人
主权项
地址
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