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发明名称
CLEANING METHOD AND APPARATUS
摘要
申请公布号
GB1569840(A)
申请公布日期
1980.06.18
申请号
GB19770039002
申请日期
1977.09.19
申请人
US FLOOR SYSTEMS INC
发明人
分类号
A47L11/34;(IPC1-7):B08B7/02
主分类号
A47L11/34
代理机构
代理人
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地址
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