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发明名称
METHOD AND MEANS FOR CLEANING PIPELINES
摘要
申请公布号
CA815347(A)
申请公布日期
1969.06.17
申请号
CAD815347
申请日期
申请人
WESTERN DECALTA PETROLEUM LIMITED
发明人
RONALD W. SCHULTZ
分类号
主分类号
代理机构
代理人
主权项
地址
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