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经营范围
发明名称
PREFILTERED RADIO DIRECTION FINDERS
摘要
申请公布号
US3611386(A)
申请公布日期
1971.10.05
申请号
USD3611386
申请日期
1969.07.16
申请人
LLOYD J. PERPER
发明人
LLOYD J. PERPER
分类号
G01S3/06;G01S3/42;(IPC1-7):G01S3/42
主分类号
G01S3/06
代理机构
代理人
主权项
地址
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