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经营范围
发明名称
Sealing structure
摘要
申请公布号
US2020122(A)
申请公布日期
1935.11.05
申请号
US19330673586
申请日期
1933.05.31
申请人
PADGETT JOSEPH E
发明人
PADGETT JOSEPH E.
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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