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发明名称
APPARATUS TO CLEAR CHOCKED PIPES
摘要
申请公布号
CA565947(A)
申请公布日期
1958.11.11
申请号
CAD565947
申请日期
申请人
LUCIEN BEAULIEU
发明人
LUCIEN BEAULIEU
分类号
主分类号
代理机构
代理人
主权项
地址
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