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发明名称
Repair coupling with temporary and permanent seals
摘要
申请公布号
US2699344(A)
申请公布日期
1955.01.11
申请号
US19520302567
申请日期
1952.08.04
申请人
BISSELL WALTER E
发明人
BISSELL WALTER E.
分类号
F16L23/18
主分类号
F16L23/18
代理机构
代理人
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地址
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