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发明名称
Improvements in and relating to jointing rings and the like
摘要
申请公布号
GB513005(A)
申请公布日期
1939.10.02
申请号
GB19380009560
申请日期
1938.03.29
申请人
PAUL QUINN LIMITED;PAUL QUINN
发明人
分类号
F16J15/12
主分类号
F16J15/12
代理机构
代理人
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