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发明名称
PIPELINE POSITIONING SYSTEM
摘要
申请公布号
GB1498748(A)
申请公布日期
1978.01.25
申请号
GB19750036119
申请日期
1975.09.02
申请人
HARRISON H
发明人
分类号
F16L1/12;B63B35/03;F16L1/23;F16L3/00;F16L3/16;(IPC1-7):F16L1/04
主分类号
F16L1/12
代理机构
代理人
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地址
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