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经营范围
发明名称
Improvements in or relating to suction cleaners
摘要
申请公布号
GB506763(A)
申请公布日期
1939.06.05
申请号
GB19370033549
申请日期
1937.12.03
申请人
HOOVER LIMITED
发明人
分类号
A47L5/32
主分类号
A47L5/32
代理机构
代理人
主权项
地址
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