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发明名称
Telemetric annunciator
摘要
申请公布号
US2247942(A)
申请公布日期
1941.07.01
申请号
US19380214749
申请日期
1938.06.20
申请人
DE KOEVEND HERMAN
发明人
KOEVEND HERMAN DE
分类号
G08C19/16
主分类号
G08C19/16
代理机构
代理人
主权项
地址
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