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发明名称
Time switch
摘要
申请公布号
US1878637(A)
申请公布日期
1932.09.20
申请号
US19300478955
申请日期
1930.08.30
申请人
KUYKENDALL JOSEPH E
发明人
KUYKENDALL JOSEPH E.
分类号
G04C23/18
主分类号
G04C23/18
代理机构
代理人
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