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发明名称
Improvements in or relating to electric alarm clocks
摘要
申请公布号
GB642440(A)
申请公布日期
1950.09.06
申请号
GB19470032574
申请日期
1947.12.10
申请人
MAX WEBER
发明人
分类号
G04C23/16
主分类号
G04C23/16
代理机构
代理人
主权项
地址
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