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发明名称
In einem Hohlspiegel angeordneter Gasstromschwinggenerator zur Schallkonzentration
摘要
申请公布号
DE749021(C)
申请公布日期
1944.11.17
申请号
DED749021D
申请日期
1940.08.07
申请人
发明人
HERTZ DR. GUSTAV
分类号
G10K5/00;G10K11/28
主分类号
G10K5/00
代理机构
代理人
主权项
地址
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