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发明名称
Indicating device
摘要
申请公布号
US2374439(A)
申请公布日期
1945.04.24
申请号
US19410377203
申请日期
1941.02.03
申请人
LEO M. HERKERT
发明人
KOREVEC EDWARD A.
分类号
G08B21/00
主分类号
G08B21/00
代理机构
代理人
主权项
地址
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