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发明名称
Electric clock
摘要
申请公布号
US1983092(A)
申请公布日期
1934.12.04
申请号
US19280311318
申请日期
1928.10.09
申请人
GENERAL MOTORS CORPORATION
发明人
LOUDON WARREN P.
分类号
G04C1/02
主分类号
G04C1/02
代理机构
代理人
主权项
地址
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