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发明名称
Improvements in or relating to hand operated suction cleaners
摘要
申请公布号
GB508621(A)
申请公布日期
1939.07.04
申请号
GB19380014825
申请日期
1938.05.18
申请人
WILLIAM EDGAR PITT BAYLY
发明人
分类号
A47L5/04
主分类号
A47L5/04
代理机构
代理人
主权项
地址
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