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发明名称
Improvements in devices for excluding dust from corners and angles of staircases, rooms and like places, and in articles of furniture and the like
摘要
申请公布号
GB414977(A)
申请公布日期
1934.08.16
申请号
GB19340004914
申请日期
1934.02.14
申请人
ALLAN CHARLES GROSSMITH
发明人
分类号
E04F19/04
主分类号
E04F19/04
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代理人
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