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发明名称
Improvements in retaining devices for the ribs of umbrellas and the like
摘要
申请公布号
GB619692(A)
申请公布日期
1949.03.14
申请号
GB19460020625
申请日期
1946.07.10
申请人
JOHN JACOB SINGER
发明人
分类号
A45B25/12
主分类号
A45B25/12
代理机构
代理人
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