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发明名称
Echolotgeraet mit Anzeige durch eine Braunsche Roehre und Registriergeraet
摘要
申请公布号
DE971504(C)
申请公布日期
1959.02.05
申请号
DE1952E005220
申请日期
1952.03.18
申请人
ELECTROACUSTIC GESELLSCHAFT M.B.H.
发明人
AHRENS ERHARD DR. PHIL. HABIL.
分类号
G01S1/72
主分类号
G01S1/72
代理机构
代理人
主权项
地址
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