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发明名称
ACOUSTIC DIRECTION SENSING SYSTEMS
摘要
申请公布号
CA890042(A)
申请公布日期
1972.01.04
申请号
CAD890042
申请日期
申请人
ELECTRIC AND MUSICAL INDUSTRIES LIMITED
发明人
BERTRAND J. STARKEY
分类号
主分类号
代理机构
代理人
主权项
地址
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