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发明名称
Improvements in or relating to compressed-air operated devices such as vacuum cleaners
摘要
申请公布号
GB659742(A)
申请公布日期
1951.10.24
申请号
GB19470034190
申请日期
1947.12.24
申请人
SVEN ARILD NILSSON-SWALLERT
发明人
分类号
A47L5/18
主分类号
A47L5/18
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代理人
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