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经营范围
发明名称
Improvements in or relating to electric alarm clocks
摘要
申请公布号
GB572554(A)
申请公布日期
1945.10.12
申请号
GB19430017002
申请日期
1943.10.15
申请人
S. SMITH & SONS (ENGLAND) LIMITED;VICTOR JAMES SAMUEL RUSSELL
发明人
分类号
G04C21/02
主分类号
G04C21/02
代理机构
代理人
主权项
地址
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