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发明名称
Echolotgeraet nach dem Summe-Differenz-Verfahren
摘要
申请公布号
DE1516621(A1)
申请公布日期
1969.05.08
申请号
DE19651516621
申请日期
1965.02.16
申请人
ELECTROACUSTIC GMBH
发明人
GUSTAV MAASS,DIPL.-PHYS.
分类号
G01S15/42
主分类号
G01S15/42
代理机构
代理人
主权项
地址
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