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发明名称
Window washing device
摘要
申请公布号
US2569258(A)
申请公布日期
1951.09.25
申请号
US19460674602
申请日期
1946.06.05
申请人
LOTTIE PRAGER
发明人
PRAGER LOTTIE
分类号
A47L1/09
主分类号
A47L1/09
代理机构
代理人
主权项
地址
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