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经营范围
发明名称
Improvements in or relating to a window cleaning device
摘要
申请公布号
GB727079(A)
申请公布日期
1955.03.30
申请号
GB19520031130
申请日期
1952.12.09
申请人
JAMES BLEACKLEY
发明人
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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