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发明名称
Improvements in or relating to alarum clocks
摘要
申请公布号
GB447589(A)
申请公布日期
1936.05.21
申请号
GB19350024875
申请日期
1935.09.06
申请人
HUGH BLACKFORD MACKLE
发明人
分类号
G04C21/20
主分类号
G04C21/20
代理机构
代理人
主权项
地址
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