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发明名称
Improvements in or relating to sweepers
摘要
申请公布号
GB781675(A)
申请公布日期
1957.08.21
申请号
GB19550033568
申请日期
1955.11.23
申请人
JOHN ALLEN & SONS (OXFORD) LIMITED
发明人
CAUDWELL PHILIP GORDON
分类号
A47L11/24;E01H1/04
主分类号
A47L11/24
代理机构
代理人
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地址
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