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发明名称
Improvements in and relating to cleaning devices
摘要
申请公布号
GB780647(A)
申请公布日期
1957.08.07
申请号
GB19560008038
申请日期
1956.03.14
申请人
ALGEMENE KUNSTZIJDE UNIE N.V.
发明人
分类号
A47L13/257
主分类号
A47L13/257
代理机构
代理人
主权项
地址
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