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发明名称
PIPE CAP
摘要
A device for capping a pipe, particularly for an underground pipe. This device serves to keep dirt, mud, water and the like from entering an underground pipe.
申请公布号
US3669153(A)
申请公布日期
1972.06.13
申请号
USD3669153
申请日期
1969.09.29
申请人
CLETUS WEAVER
发明人
CLETUS WEAVER
分类号
F16L55/132;(IPC1-7):F16L57/00
主分类号
F16L55/132
代理机构
代理人
主权项
地址
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