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发明名称
Sealing ring
摘要
申请公布号
US1867718(A)
申请公布日期
1932.07.19
申请号
US19300444728
申请日期
1930.04.16
申请人
TOWELL WILLIAM B
发明人
TOWELL WILLIAM B.
分类号
F16J9/06
主分类号
F16J9/06
代理机构
代理人
主权项
地址
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