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发明名称
Verfahren zur Messung der Schallausbreitung in freien Gewaessern
摘要
申请公布号
DE1020463(B)
申请公布日期
1957.12.05
申请号
DE1955E011438
申请日期
1955.10.18
申请人
ELECTROACUSTIC GESELLSCHAFT M.B.H.
发明人
HECHT DR. DR. H.C. HEINRICH;LAPP DR. KARL
分类号
G01H3/00
主分类号
G01H3/00
代理机构
代理人
主权项
地址
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