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发明名称
Verfahren zur elektromagnetischen Bodenerforschung mittels Wechselstroeme in einer Sendeschleife
摘要
申请公布号
DE509420(C)
申请公布日期
1930.10.09
申请号
DE1926A049458D
申请日期
1926.12.05
申请人
DR. RICHARD AMBRONN
发明人
分类号
G01V3/06
主分类号
G01V3/06
代理机构
代理人
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地址
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