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发明名称
SCRAPER
摘要
申请公布号
CA302870(A)
申请公布日期
1930.08.05
申请号
CAD302870
申请日期
申请人
OLE K. SIMONSEN;CHRISTIAN STOCKHOLM
发明人
PETER C. NEILSEN
分类号
主分类号
代理机构
代理人
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