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发明名称
CARPET SWEEPER
摘要
申请公布号
CA376825(A)
申请公布日期
1938.10.04
申请号
CAD376825
申请日期
申请人
E. R. WAGNER MANUFACTURING COMPANY
发明人
SWIFT MILLER
分类号
主分类号
代理机构
代理人
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