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发明名称
Time switch
摘要
申请公布号
US2887543(A)
申请公布日期
1959.05.19
申请号
US19560617572
申请日期
1956.10.22
申请人
BUTLER EDWARD J
发明人
BUTLER EDWARD J.
分类号
G04C23/28
主分类号
G04C23/28
代理机构
代理人
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