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发明名称
Improvements in sweepers fo carpets, floors or the like
摘要
申请公布号
GB621564(A)
申请公布日期
1949.04.12
申请号
GB19450034036
申请日期
1945.12.15
申请人
PAUL HEFTLER
发明人
分类号
A47L11/33
主分类号
A47L11/33
代理机构
代理人
主权项
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