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发明名称
Alarm clock
摘要
申请公布号
US1979087(A)
申请公布日期
1934.10.30
申请号
US19320640269
申请日期
1932.10.29
申请人
WARREN TELECHRON COMPANY
发明人
WARREN HENRY E.
分类号
G04C21/16
主分类号
G04C21/16
代理机构
代理人
主权项
地址
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