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发明名称
Device for floor-treatment
摘要
申请公布号
US3335448(A)
申请公布日期
1967.08.15
申请号
US19640390442
申请日期
1964.08.18
申请人
LEOPOLD KNESTELE
发明人
KNESTELE LEOPOLD
分类号
A47L13/312
主分类号
A47L13/312
代理机构
代理人
主权项
地址
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