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发明名称
Seal for concrete pipe joint having means for spacing the pipe ends
摘要
申请公布号
US2832614(A)
申请公布日期
1958.04.29
申请号
US19550495169
申请日期
1955.03.18
申请人
SETTLE JR JOSEPH E
发明人
JR. JOSEPH E. SETTLE,
分类号
F16L13/11;F16L25/00
主分类号
F16L13/11
代理机构
代理人
主权项
地址
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