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发明名称
Gerichtet strahlender Luftschallsender, der mit einer steuerbaren Drehvorrichtung gekuppelt ist
摘要
申请公布号
DE696167(C)
申请公布日期
1940.09.13
申请号
DE193700E9866D
申请日期
1937.06.20
申请人
ELECTROACUSTIC GESELLSCHAFT M.B.H.
发明人
JOHN DR. ULRICH
分类号
G10K11/00
主分类号
G10K11/00
代理机构
代理人
主权项
地址
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