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发明名称
Signal switch
摘要
申请公布号
US2375393(A)
申请公布日期
1945.05.08
申请号
US19420426610
申请日期
1942.01.13
申请人
STORY THOMAS E
发明人
STORY THOMAS E.
分类号
G08B27/00
主分类号
G08B27/00
代理机构
代理人
主权项
地址
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