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发明名称
Direction indicating apparatus
摘要
申请公布号
US2423104(A)
申请公布日期
1947.07.01
申请号
US19410383108
申请日期
1941.03.13
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
LABIN EMILE
分类号
G01S7/20
主分类号
G01S7/20
代理机构
代理人
主权项
地址
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