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发明名称
Improvements in umbrellas
摘要
申请公布号
GB345412(A)
申请公布日期
1931.03.26
申请号
GB19300003584
申请日期
1930.02.03
申请人
DAVID STOTT COOPER
发明人
分类号
A45B25/12
主分类号
A45B25/12
代理机构
代理人
主权项
地址
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