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发明名称
Pipe plug
摘要
申请公布号
US3051200(A)
申请公布日期
1962.08.28
申请号
US19600019789
申请日期
1960.04.04
申请人
JAMES B. CLOW & SONS, INC.
发明人
BEVINGTON WILLIAM J.
分类号
F16L55/136
主分类号
F16L55/136
代理机构
代理人
主权项
地址
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