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发明名称
SCRAPER CABLE ARRANGEMENT
摘要
申请公布号
CA408411(A)
申请公布日期
1942.11.03
申请号
CAD408411
申请日期
申请人
R. G. LETOURNEAU
发明人
R. G. LETOURNEAU
分类号
主分类号
代理机构
代理人
主权项
地址
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