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发明名称
ECHOLOTGERAET MIT WECHSELWEISE ALS SENDER UND EMPFAENGER DIENENDEM WANDLER.
摘要
申请公布号
DE1742724(U)
申请公布日期
1957.04.04
申请号
DE195500E7912U
申请日期
1955.12.24
申请人
ELECTROACUSTIC GESELLSCHAFT M.B.H.
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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