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发明名称
Apparatus for laying a pipe line under a right-of-way
摘要
申请公布号
US2816575(A)
申请公布日期
1957.12.17
申请号
US19530354264
申请日期
1953.05.11
申请人
STOKES WILLIAM S
发明人
STOKES WILLIAM S.
分类号
F16L7/00;F16L7/02
主分类号
F16L7/00
代理机构
代理人
主权项
地址
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