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发明名称
Vorrichtung zum Erzeugen eines gleichmaessig verteilten Schalldrucks in Messeinrichtungen fuer Schallabsorption
摘要
申请公布号
DE674110(C)
申请公布日期
1939.04.05
申请号
DE1937E049470D
申请日期
1937.03.13
申请人
FIRMA J. EBERSPAECHER
发明人
MARTIN DR.-ING. HERBERT
分类号
G01H7/00
主分类号
G01H7/00
代理机构
代理人
主权项
地址
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