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发明名称
Vacuum floor cleaner
摘要
申请公布号
US2078101(A)
申请公布日期
1937.04.20
申请号
US19360106823
申请日期
1936.10.21
申请人
SCHMERMUND LYDIA M
发明人
SCHMERMUND LYDIA M.
分类号
A47L11/206
主分类号
A47L11/206
代理机构
代理人
主权项
地址
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