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发明名称
DETERMINATION OF DISTANCE TRAVELLED BY PIPELINE INSPECTION APPARATUS
摘要
申请公布号
CA1017141(A)
申请公布日期
1977.09.13
申请号
CA19740189521
申请日期
1974.01.07
申请人
SHELL CANADA LIMITED
发明人
VAN RIEMSDIJK, ARNOLDUS J.;VAN DEN BERG, WALDO
分类号
主分类号
代理机构
代理人
主权项
地址
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