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发明名称
Seal ring
摘要
申请公布号
US1851075(A)
申请公布日期
1932.03.29
申请号
US19280274586
申请日期
1928.05.02
申请人
LOUIS C. SICKEL
发明人
ACKERMAN MICHAEL H.
分类号
F16J15/38
主分类号
F16J15/38
代理机构
代理人
主权项
地址
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