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发明名称
DIRECTION INDICATING AND FINDING SYSTEM
摘要
申请公布号
CA479954(A)
申请公布日期
1952.01.01
申请号
CAD479954
申请日期
申请人
PANORAMIC RADIO CORPORATION
发明人
JOSEPH I. HELLER
分类号
主分类号
代理机构
代理人
主权项
地址
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