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发明名称
Improvements in lock-up fastenings for roller-shutters
摘要
申请公布号
GB522639(A)
申请公布日期
1940.06.24
申请号
GB19380036673
申请日期
1938.12.16
申请人
CHARLES HIRSCHHORN
发明人
分类号
E06B9/80
主分类号
E06B9/80
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