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发明名称
Seal
摘要
申请公布号
US2592494(A)
申请公布日期
1952.04.08
申请号
US19470760557
申请日期
1947.07.12
申请人
CHICAGO RAWHIDE MANUFACTURING COMPANY
发明人
ULLMANN STUART E.
分类号
F16J15/36
主分类号
F16J15/36
代理机构
代理人
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