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发明名称
Improvements relating to underground pipe laying
摘要
申请公布号
GB967119(A)
申请公布日期
1964.08.19
申请号
GB19620040428
申请日期
1962.10.25
申请人
HYDROBIT G.M.B.H.
发明人
分类号
C04B24/36;F16L1/028;F16L58/12;F16L59/02;F16L59/14;F16L59/15
主分类号
C04B24/36
代理机构
代理人
主权项
地址
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