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发明名称
Oil seal
摘要
申请公布号
US2704683(A)
申请公布日期
1955.03.22
申请号
US19500181522
申请日期
1950.08.25
申请人
BENJAMIN SHORNA
发明人
SHORNA BENJAMIN
分类号
F16J15/32
主分类号
F16J15/32
代理机构
代理人
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