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发明名称
ACOUSTIC DIRECTION FINDER
摘要
申请公布号
US3501740(A)
申请公布日期
1970.03.17
申请号
USD3501740
申请日期
1969.01.31
申请人
SANDERS ASSOCIATES INC.
发明人
WILLIAM J. PARKIN
分类号
G01S3/802;(IPC1-7):G01S3/00
主分类号
G01S3/802
代理机构
代理人
主权项
地址
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